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Finding the Fourth Proportional to 625,565.88, 863,293.95 and 353,617.56

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Solution

The fourth proportional to 625,565.88, 863,293.95 and 353,617.56 is: 487,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,565.88 : 863,293.95 = 353,617.56 : x
  2. Step 2: Convert to fraction form
    625,565.88/863,293.95 = 353,617.56/x
  3. Step 3: Cross multiply
    625,565.88x = 863,293.95 × 353,617.56
  4. Step 4: Simplify right side
    625,565.88x = 305,275,900,161.76
  5. Step 5: Solve for x
    x = 305,275,900,161.76/625,565.88
  6. Step 6: Final answer
    x = 487,999.60

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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.