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Finding the Fourth Proportional to 474,062.20, 712,356.90 and 260,999.80

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Solution

The fourth proportional to 474,062.20, 712,356.90 and 260,999.80 is: 392,195.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,062.20 : 712,356.90 = 260,999.80 : x
  2. Step 2: Convert to fraction form
    474,062.20/712,356.90 = 260,999.80/x
  3. Step 3: Cross multiply
    474,062.20x = 712,356.90 × 260,999.80
  4. Step 4: Simplify right side
    474,062.20x = 185,925,008,428.62
  5. Step 5: Solve for x
    x = 185,925,008,428.62/474,062.20
  6. Step 6: Final answer
    x = 392,195.39

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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.