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Finding the Fourth Proportional to 322,456.70, 483,454.65 and 144,818.30

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Solution

The fourth proportional to 322,456.70, 483,454.65 and 144,818.30 is: 217,123.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,456.70 : 483,454.65 = 144,818.30 : x
  2. Step 2: Convert to fraction form
    322,456.70/483,454.65 = 144,818.30/x
  3. Step 3: Cross multiply
    322,456.70x = 483,454.65 × 144,818.30
  4. Step 4: Simplify right side
    322,456.70x = 70,013,080,540.10
  5. Step 5: Solve for x
    x = 70,013,080,540.10/322,456.70
  6. Step 6: Final answer
    x = 217,123.98

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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.