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Finding the Fourth Proportional to 539,942.60, 809,913.90 and 532,069.40

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Solution

The fourth proportional to 539,942.60, 809,913.90 and 532,069.40 is: 798,104.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,942.60 : 809,913.90 = 532,069.40 : x
  2. Step 2: Convert to fraction form
    539,942.60/809,913.90 = 532,069.40/x
  3. Step 3: Cross multiply
    539,942.60x = 809,913.90 × 532,069.40
  4. Step 4: Simplify right side
    539,942.60x = 430,930,402,824.66
  5. Step 5: Solve for x
    x = 430,930,402,824.66/539,942.60
  6. Step 6: Final answer
    x = 798,104.10

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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.