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Finding the Fourth Proportional to 475,439.74, 656,077.10 and 260,564.56

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Solution

The fourth proportional to 475,439.74, 656,077.10 and 260,564.56 is: 359,562.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,439.74 : 656,077.10 = 260,564.56 : x
  2. Step 2: Convert to fraction form
    475,439.74/656,077.10 = 260,564.56/x
  3. Step 3: Cross multiply
    475,439.74x = 656,077.10 × 260,564.56
  4. Step 4: Simplify right side
    475,439.74x = 170,950,440,887.58
  5. Step 5: Solve for x
    x = 170,950,440,887.58/475,439.74
  6. Step 6: Final answer
    x = 359,562.79

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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.