Home / 665,371.40-998,057.10-222,139.40

Finding the Fourth Proportional to 665,371.40, 998,057.10 and 222,139.40

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Solution

The fourth proportional to 665,371.40, 998,057.10 and 222,139.40 is: 333,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,371.40 : 998,057.10 = 222,139.40 : x
  2. Step 2: Convert to fraction form
    665,371.40/998,057.10 = 222,139.40/x
  3. Step 3: Cross multiply
    665,371.40x = 998,057.10 × 222,139.40
  4. Step 4: Simplify right side
    665,371.40x = 221,707,805,359.74
  5. Step 5: Solve for x
    x = 221,707,805,359.74/665,371.40
  6. Step 6: Final answer
    x = 333,209.10

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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.