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Finding the Fourth Proportional to 625,535.69, 863,331.48 and 396,113.92

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Solution

The fourth proportional to 625,535.69, 863,331.48 and 396,113.92 is: 546,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,535.69 : 863,331.48 = 396,113.92 : x
  2. Step 2: Convert to fraction form
    625,535.69/863,331.48 = 396,113.92/x
  3. Step 3: Cross multiply
    625,535.69x = 863,331.48 × 396,113.92
  4. Step 4: Simplify right side
    625,535.69x = 341,977,614,643.87
  5. Step 5: Solve for x
    x = 341,977,614,643.87/625,535.69
  6. Step 6: Final answer
    x = 546,695.61

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1.5x scale

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.