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Finding the Fourth Proportional to 574,880.40, 862,320.60 and 531,577.80

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Solution

The fourth proportional to 574,880.40, 862,320.60 and 531,577.80 is: 797,366.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,880.40 : 862,320.60 = 531,577.80 : x
  2. Step 2: Convert to fraction form
    574,880.40/862,320.60 = 531,577.80/x
  3. Step 3: Cross multiply
    574,880.40x = 862,320.60 × 531,577.80
  4. Step 4: Simplify right side
    574,880.40x = 458,390,487,442.68
  5. Step 5: Solve for x
    x = 458,390,487,442.68/574,880.40
  6. Step 6: Final answer
    x = 797,366.70

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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.