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Finding the Fourth Proportional to 624,658.25, 862,032.84 and 338,179.07

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Solution

The fourth proportional to 624,658.25, 862,032.84 and 338,179.07 is: 466,689.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,658.25 : 862,032.84 = 338,179.07 : x
  2. Step 2: Convert to fraction form
    624,658.25/862,032.84 = 338,179.07/x
  3. Step 3: Cross multiply
    624,658.25x = 862,032.84 × 338,179.07
  4. Step 4: Simplify right side
    624,658.25x = 291,521,464,140.66
  5. Step 5: Solve for x
    x = 291,521,464,140.66/624,658.25
  6. Step 6: Final answer
    x = 466,689.53

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Similar ratio
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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.