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Finding the Fourth Proportional to 574,387.20, 862,617.60 and 416,793.60

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Solution

The fourth proportional to 574,387.20, 862,617.60 and 416,793.60 is: 625,942.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,387.20 : 862,617.60 = 416,793.60 : x
  2. Step 2: Convert to fraction form
    574,387.20/862,617.60 = 416,793.60/x
  3. Step 3: Cross multiply
    574,387.20x = 862,617.60 × 416,793.60
  4. Step 4: Simplify right side
    574,387.20x = 359,533,494,927.36
  5. Step 5: Solve for x
    x = 359,533,494,927.36/574,387.20
  6. Step 6: Final answer
    x = 625,942.74

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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.