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Finding the Fourth Proportional to 532,431.60, 798,647.40 and 491,881.20

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Solution

The fourth proportional to 532,431.60, 798,647.40 and 491,881.20 is: 737,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,431.60 : 798,647.40 = 491,881.20 : x
  2. Step 2: Convert to fraction form
    532,431.60/798,647.40 = 491,881.20/x
  3. Step 3: Cross multiply
    532,431.60x = 798,647.40 × 491,881.20
  4. Step 4: Simplify right side
    532,431.60x = 392,839,641,488.88
  5. Step 5: Solve for x
    x = 392,839,641,488.88/532,431.60
  6. Step 6: Final answer
    x = 737,821.80

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Similar ratio
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1.5x scale

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.