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Finding the Fourth Proportional to 355,815.30, 534,014.55 and 344,151.30

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Solution

The fourth proportional to 355,815.30, 534,014.55 and 344,151.30 is: 516,508.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,815.30 : 534,014.55 = 344,151.30 : x
  2. Step 2: Convert to fraction form
    355,815.30/534,014.55 = 344,151.30/x
  3. Step 3: Cross multiply
    355,815.30x = 534,014.55 × 344,151.30
  4. Step 4: Simplify right side
    355,815.30x = 183,781,801,601.42
  5. Step 5: Solve for x
    x = 183,781,801,601.42/355,815.30
  6. Step 6: Final answer
    x = 516,508.99

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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.