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Finding the Fourth Proportional to 529,061.14, 729,607.04 and 408,010.69

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Solution

The fourth proportional to 529,061.14, 729,607.04 and 408,010.69 is: 562,671.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,061.14 : 729,607.04 = 408,010.69 : x
  2. Step 2: Convert to fraction form
    529,061.14/729,607.04 = 408,010.69/x
  3. Step 3: Cross multiply
    529,061.14x = 729,607.04 × 408,010.69
  4. Step 4: Simplify right side
    529,061.14x = 297,687,471,819.26
  5. Step 5: Solve for x
    x = 297,687,471,819.26/529,061.14
  6. Step 6: Final answer
    x = 562,671.21

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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.