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Finding the Fourth Proportional to 360,779.60, 541,356.14 and 261,757.10

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Solution

The fourth proportional to 360,779.60, 541,356.14 and 261,757.10 is: 392,771.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,779.60 : 541,356.14 = 261,757.10 : x
  2. Step 2: Convert to fraction form
    360,779.60/541,356.14 = 261,757.10/x
  3. Step 3: Cross multiply
    360,779.60x = 541,356.14 × 261,757.10
  4. Step 4: Simplify right side
    360,779.60x = 141,703,813,273.59
  5. Step 5: Solve for x
    x = 141,703,813,273.59/360,779.60
  6. Step 6: Final answer
    x = 392,771.14

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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.