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Finding the Fourth Proportional to 472,881.20, 709,321.80 and 224,049.20

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Solution

The fourth proportional to 472,881.20, 709,321.80 and 224,049.20 is: 336,073.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,881.20 : 709,321.80 = 224,049.20 : x
  2. Step 2: Convert to fraction form
    472,881.20/709,321.80 = 224,049.20/x
  3. Step 3: Cross multiply
    472,881.20x = 709,321.80 × 224,049.20
  4. Step 4: Simplify right side
    472,881.20x = 158,922,981,832.56
  5. Step 5: Solve for x
    x = 158,922,981,832.56/472,881.20
  6. Step 6: Final answer
    x = 336,073.80

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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.