Home / 830,842.88-1,246,264.32-199,756.72

Finding the Fourth Proportional to 830,842.88, 1,246,264.32 and 199,756.72

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Solution

The fourth proportional to 830,842.88, 1,246,264.32 and 199,756.72 is: 299,635.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,842.88 : 1,246,264.32 = 199,756.72 : x
  2. Step 2: Convert to fraction form
    830,842.88/1,246,264.32 = 199,756.72/x
  3. Step 3: Cross multiply
    830,842.88x = 1,246,264.32 × 199,756.72
  4. Step 4: Simplify right side
    830,842.88x = 248,949,666,584.91
  5. Step 5: Solve for x
    x = 248,949,666,584.91/830,842.88
  6. Step 6: Final answer
    x = 299,635.07

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.