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Finding the Fourth Proportional to 539,644.34, 744,710.13 and 297,927.31

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Solution

The fourth proportional to 539,644.34, 744,710.13 and 297,927.31 is: 411,140.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,644.34 : 744,710.13 = 297,927.31 : x
  2. Step 2: Convert to fraction form
    539,644.34/744,710.13 = 297,927.31/x
  3. Step 3: Cross multiply
    539,644.34x = 744,710.13 × 297,927.31
  4. Step 4: Simplify right side
    539,644.34x = 221,869,485,760.65
  5. Step 5: Solve for x
    x = 221,869,485,760.65/539,644.34
  6. Step 6: Final answer
    x = 411,140.21

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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.