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Finding the Fourth Proportional to 539,146.59, 744,020.17 and 297,444.21

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Solution

The fourth proportional to 539,146.59, 744,020.17 and 297,444.21 is: 410,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,146.59 : 744,020.17 = 297,444.21 : x
  2. Step 2: Convert to fraction form
    539,146.59/744,020.17 = 297,444.21/x
  3. Step 3: Cross multiply
    539,146.59x = 744,020.17 × 297,444.21
  4. Step 4: Simplify right side
    539,146.59x = 221,304,491,689.72
  5. Step 5: Solve for x
    x = 221,304,491,689.72/539,146.59
  6. Step 6: Final answer
    x = 410,471.84

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.