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Finding the Fourth Proportional to 539,521.38, 744,545.70 and 297,804.15

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Solution

The fourth proportional to 539,521.38, 744,545.70 and 297,804.15 is: 410,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,521.38 : 744,545.70 = 297,804.15 : x
  2. Step 2: Convert to fraction form
    539,521.38/744,545.70 = 297,804.15/x
  3. Step 3: Cross multiply
    539,521.38x = 744,545.70 × 297,804.15
  4. Step 4: Simplify right side
    539,521.38x = 221,728,799,324.66
  5. Step 5: Solve for x
    x = 221,728,799,324.66/539,521.38
  6. Step 6: Final answer
    x = 410,973.15

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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.