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Finding the Fourth Proportional to 625,092.77, 862,766.79 and 380,025.45

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Solution

The fourth proportional to 625,092.77, 862,766.79 and 380,025.45 is: 524,519.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,092.77 : 862,766.79 = 380,025.45 : x
  2. Step 2: Convert to fraction form
    625,092.77/862,766.79 = 380,025.45/x
  3. Step 3: Cross multiply
    625,092.77x = 862,766.79 × 380,025.45
  4. Step 4: Simplify right side
    625,092.77x = 327,873,336,117.48
  5. Step 5: Solve for x
    x = 327,873,336,117.48/625,092.77
  6. Step 6: Final answer
    x = 524,519.49

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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.