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Finding the Fourth Proportional to 625,041.94, 862,557.49 and 338,561.30

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Solution

The fourth proportional to 625,041.94, 862,557.49 and 338,561.30 is: 467,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,041.94 : 862,557.49 = 338,561.30 : x
  2. Step 2: Convert to fraction form
    625,041.94/862,557.49 = 338,561.30/x
  3. Step 3: Cross multiply
    625,041.94x = 862,557.49 × 338,561.30
  4. Step 4: Simplify right side
    625,041.94x = 292,028,585,139.14
  5. Step 5: Solve for x
    x = 292,028,585,139.14/625,041.94
  6. Step 6: Final answer
    x = 467,214.38

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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.