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Finding the Fourth Proportional to 719,491.35, 992,872.03 and 397,194.53

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Solution

The fourth proportional to 719,491.35, 992,872.03 and 397,194.53 is: 548,114.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,491.35 : 992,872.03 = 397,194.53 : x
  2. Step 2: Convert to fraction form
    719,491.35/992,872.03 = 397,194.53/x
  3. Step 3: Cross multiply
    719,491.35x = 992,872.03 × 397,194.53
  4. Step 4: Simplify right side
    719,491.35x = 394,363,339,306.00
  5. Step 5: Solve for x
    x = 394,363,339,306.00/719,491.35
  6. Step 6: Final answer
    x = 548,114.08

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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.