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Finding the Fourth Proportional to 570,885.60, 857,641.14 and 402,793.32

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Solution

The fourth proportional to 570,885.60, 857,641.14 and 402,793.32 is: 605,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,885.60 : 857,641.14 = 402,793.32 : x
  2. Step 2: Convert to fraction form
    570,885.60/857,641.14 = 402,793.32/x
  3. Step 3: Cross multiply
    570,885.60x = 857,641.14 × 402,793.32
  4. Step 4: Simplify right side
    570,885.60x = 345,452,122,149.19
  5. Step 5: Solve for x
    x = 345,452,122,149.19/570,885.60
  6. Step 6: Final answer
    x = 605,116.20

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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.