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Finding the Fourth Proportional to 605,129.10, 907,693.65 and 576,098.70

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Solution

The fourth proportional to 605,129.10, 907,693.65 and 576,098.70 is: 864,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,129.10 : 907,693.65 = 576,098.70 : x
  2. Step 2: Convert to fraction form
    605,129.10/907,693.65 = 576,098.70/x
  3. Step 3: Cross multiply
    605,129.10x = 907,693.65 × 576,098.70
  4. Step 4: Simplify right side
    605,129.10x = 522,921,131,763.26
  5. Step 5: Solve for x
    x = 522,921,131,763.26/605,129.10
  6. Step 6: Final answer
    x = 864,148.05

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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.