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Finding the Fourth Proportional to 451,711.86, 623,358.12 and 247,758.60

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Solution

The fourth proportional to 451,711.86, 623,358.12 and 247,758.60 is: 341,904.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,711.86 : 623,358.12 = 247,758.60 : x
  2. Step 2: Convert to fraction form
    451,711.86/623,358.12 = 247,758.60/x
  3. Step 3: Cross multiply
    451,711.86x = 623,358.12 × 247,758.60
  4. Step 4: Simplify right side
    451,711.86x = 154,442,335,109.83
  5. Step 5: Solve for x
    x = 154,442,335,109.83/451,711.86
  6. Step 6: Final answer
    x = 341,904.54

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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.