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Finding the Fourth Proportional to 313,238.20, 469,079.70 and 251,030.20

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Solution

The fourth proportional to 313,238.20, 469,079.70 and 251,030.20 is: 375,922.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,238.20 : 469,079.70 = 251,030.20 : x
  2. Step 2: Convert to fraction form
    313,238.20/469,079.70 = 251,030.20/x
  3. Step 3: Cross multiply
    313,238.20x = 469,079.70 × 251,030.20
  4. Step 4: Simplify right side
    313,238.20x = 117,753,170,906.94
  5. Step 5: Solve for x
    x = 117,753,170,906.94/313,238.20
  6. Step 6: Final answer
    x = 375,922.13

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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.