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Finding the Fourth Proportional to 539,310.20, 747,394.52 and 531,699.44

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Solution

The fourth proportional to 539,310.20, 747,394.52 and 531,699.44 is: 736,847.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,310.20 : 747,394.52 = 531,699.44 : x
  2. Step 2: Convert to fraction form
    539,310.20/747,394.52 = 531,699.44/x
  3. Step 3: Cross multiply
    539,310.20x = 747,394.52 × 531,699.44
  4. Step 4: Simplify right side
    539,310.20x = 397,389,247,743.07
  5. Step 5: Solve for x
    x = 397,389,247,743.07/539,310.20
  6. Step 6: Final answer
    x = 736,847.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.