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Finding the Fourth Proportional to 437,596.53, 656,444.05 and 137,988.46

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Solution

The fourth proportional to 437,596.53, 656,444.05 and 137,988.46 is: 206,998.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,596.53 : 656,444.05 = 137,988.46 : x
  2. Step 2: Convert to fraction form
    437,596.53/656,444.05 = 137,988.46/x
  3. Step 3: Cross multiply
    437,596.53x = 656,444.05 × 137,988.46
  4. Step 4: Simplify right side
    437,596.53x = 90,581,704,011.25
  5. Step 5: Solve for x
    x = 90,581,704,011.25/437,596.53
  6. Step 6: Final answer
    x = 206,998.22

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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.