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Finding the Fourth Proportional to 619,098.88, 928,715.20 and 264,150.40

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Solution

The fourth proportional to 619,098.88, 928,715.20 and 264,150.40 is: 396,254.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,098.88 : 928,715.20 = 264,150.40 : x
  2. Step 2: Convert to fraction form
    619,098.88/928,715.20 = 264,150.40/x
  3. Step 3: Cross multiply
    619,098.88x = 928,715.20 × 264,150.40
  4. Step 4: Simplify right side
    619,098.88x = 245,320,491,566.08
  5. Step 5: Solve for x
    x = 245,320,491,566.08/619,098.88
  6. Step 6: Final answer
    x = 396,254.14

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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.