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Finding the Fourth Proportional to 475,842.10, 656,680.50 and 260,991.22

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Solution

The fourth proportional to 475,842.10, 656,680.50 and 260,991.22 is: 360,177.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,842.10 : 656,680.50 = 260,991.22 : x
  2. Step 2: Convert to fraction form
    475,842.10/656,680.50 = 260,991.22/x
  3. Step 3: Cross multiply
    475,842.10x = 656,680.50 × 260,991.22
  4. Step 4: Simplify right side
    475,842.10x = 171,387,844,845.21
  5. Step 5: Solve for x
    x = 171,387,844,845.21/475,842.10
  6. Step 6: Final answer
    x = 360,177.98

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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.