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Finding the Fourth Proportional to 624,549.88, 861,880.92 and 338,069.84

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Solution

The fourth proportional to 624,549.88, 861,880.92 and 338,069.84 is: 466,537.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,549.88 : 861,880.92 = 338,069.84 : x
  2. Step 2: Convert to fraction form
    624,549.88/861,880.92 = 338,069.84/x
  3. Step 3: Cross multiply
    624,549.88x = 861,880.92 × 338,069.84
  4. Step 4: Simplify right side
    624,549.88x = 291,375,944,723.45
  5. Step 5: Solve for x
    x = 291,375,944,723.45/624,549.88
  6. Step 6: Final answer
    x = 466,537.51

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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.