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Finding the Fourth Proportional to 483,677.40, 725,516.10 and 371,921.70

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Solution

The fourth proportional to 483,677.40, 725,516.10 and 371,921.70 is: 557,882.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,677.40 : 725,516.10 = 371,921.70 : x
  2. Step 2: Convert to fraction form
    483,677.40/725,516.10 = 371,921.70/x
  3. Step 3: Cross multiply
    483,677.40x = 725,516.10 × 371,921.70
  4. Step 4: Simplify right side
    483,677.40x = 269,835,181,289.37
  5. Step 5: Solve for x
    x = 269,835,181,289.37/483,677.40
  6. Step 6: Final answer
    x = 557,882.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.