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Finding the Fourth Proportional to 624,827.39, 862,265.90 and 338,347.49

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Solution

The fourth proportional to 624,827.39, 862,265.90 and 338,347.49 is: 466,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,827.39 : 862,265.90 = 338,347.49 : x
  2. Step 2: Convert to fraction form
    624,827.39/862,265.90 = 338,347.49/x
  3. Step 3: Cross multiply
    624,827.39x = 862,265.90 × 338,347.49
  4. Step 4: Simplify right side
    624,827.39x = 291,745,502,977.59
  5. Step 5: Solve for x
    x = 291,745,502,977.59/624,827.39
  6. Step 6: Final answer
    x = 466,921.76

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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.