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Finding the Fourth Proportional to 624,641.08, 862,011.57 and 338,167.30

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Solution

The fourth proportional to 624,641.08, 862,011.57 and 338,167.30 is: 466,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,641.08 : 862,011.57 = 338,167.30 : x
  2. Step 2: Convert to fraction form
    624,641.08/862,011.57 = 338,167.30/x
  3. Step 3: Cross multiply
    624,641.08x = 862,011.57 × 338,167.30
  4. Step 4: Simplify right side
    624,641.08x = 291,504,125,195.66
  5. Step 5: Solve for x
    x = 291,504,125,195.66/624,641.08
  6. Step 6: Final answer
    x = 466,674.60

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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.