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Finding the Fourth Proportional to 519,732.38, 779,598.60 and 125,748.38

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Solution

The fourth proportional to 519,732.38, 779,598.60 and 125,748.38 is: 188,622.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,732.38 : 779,598.60 = 125,748.38 : x
  2. Step 2: Convert to fraction form
    519,732.38/779,598.60 = 125,748.38/x
  3. Step 3: Cross multiply
    519,732.38x = 779,598.60 × 125,748.38
  4. Step 4: Simplify right side
    519,732.38x = 98,033,261,000.27
  5. Step 5: Solve for x
    x = 98,033,261,000.27/519,732.38
  6. Step 6: Final answer
    x = 188,622.58

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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.