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Finding the Fourth Proportional to 624,554.25, 861,885.27 and 338,076.69

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Solution

The fourth proportional to 624,554.25, 861,885.27 and 338,076.69 is: 466,546.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,554.25 : 861,885.27 = 338,076.69 : x
  2. Step 2: Convert to fraction form
    624,554.25/861,885.27 = 338,076.69/x
  3. Step 3: Cross multiply
    624,554.25x = 861,885.27 × 338,076.69
  4. Step 4: Simplify right side
    624,554.25x = 291,383,319,241.36
  5. Step 5: Solve for x
    x = 291,383,319,241.36/624,554.25
  6. Step 6: Final answer
    x = 466,546.05

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Double scale
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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.