Home / 1,279,228,798.92-1,765,336,333.14-692,517,934.92

Finding the Fourth Proportional to 1,279,228,798.92, 1,765,336,333.14 and 692,517,934.92

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Solution

The fourth proportional to 1,279,228,798.92, 1,765,336,333.14 and 692,517,934.92 is: 955,675,069.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,228,798.92 : 1,765,336,333.14 = 692,517,934.92 : x
  2. Step 2: Convert to fraction form
    1,279,228,798.92/1,765,336,333.14 = 692,517,934.92/x
  3. Step 3: Cross multiply
    1,279,228,798.92x = 1,765,336,333.14 × 692,517,934.92
  4. Step 4: Simplify right side
    1,279,228,798.92x = 1,222,527,071,865,358,080
  5. Step 5: Solve for x
    x = 1,222,527,071,865,358,080/1,279,228,798.92
  6. Step 6: Final answer
    x = 955,675,069.93

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Half scale
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Double scale
Find fourth proportional to 1,279,228,799.92, 1,765,336,334.52 and 692,517,935.92
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.