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Finding the Fourth Proportional to 625,233.83, 862,811.33 and 353,295.86

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Solution

The fourth proportional to 625,233.83, 862,811.33 and 353,295.86 is: 487,541.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,233.83 : 862,811.33 = 353,295.86 : x
  2. Step 2: Convert to fraction form
    625,233.83/862,811.33 = 353,295.86/x
  3. Step 3: Cross multiply
    625,233.83x = 862,811.33 × 353,295.86
  4. Step 4: Simplify right side
    625,233.83x = 304,827,664,769.56
  5. Step 5: Solve for x
    x = 304,827,664,769.56/625,233.83
  6. Step 6: Final answer
    x = 487,541.86

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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.