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Finding the Fourth Proportional to 981,264.60, 1,471,994.10 and 341,469.90

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Solution

The fourth proportional to 981,264.60, 1,471,994.10 and 341,469.90 is: 512,238.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,264.60 : 1,471,994.10 = 341,469.90 : x
  2. Step 2: Convert to fraction form
    981,264.60/1,471,994.10 = 341,469.90/x
  3. Step 3: Cross multiply
    981,264.60x = 1,471,994.10 × 341,469.90
  4. Step 4: Simplify right side
    981,264.60x = 502,641,678,127.59
  5. Step 5: Solve for x
    x = 502,641,678,127.59/981,264.60
  6. Step 6: Final answer
    x = 512,238.67

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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.