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Finding the Fourth Proportional to 695,149.98, 959,327.19 and 393,337.50

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Solution

The fourth proportional to 695,149.98, 959,327.19 and 393,337.50 is: 542,817.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,149.98 : 959,327.19 = 393,337.50 : x
  2. Step 2: Convert to fraction form
    695,149.98/959,327.19 = 393,337.50/x
  3. Step 3: Cross multiply
    695,149.98x = 959,327.19 × 393,337.50
  4. Step 4: Simplify right side
    695,149.98x = 377,339,358,596.63
  5. Step 5: Solve for x
    x = 377,339,358,596.63/695,149.98
  6. Step 6: Final answer
    x = 542,817.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.