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Finding the Fourth Proportional to 472,895.96, 709,722.20 and 248,388.79

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Solution

The fourth proportional to 472,895.96, 709,722.20 and 248,388.79 is: 372,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,895.96 : 709,722.20 = 248,388.79 : x
  2. Step 2: Convert to fraction form
    472,895.96/709,722.20 = 248,388.79/x
  3. Step 3: Cross multiply
    472,895.96x = 709,722.20 × 248,388.79
  4. Step 4: Simplify right side
    472,895.96x = 176,287,037,340.80
  5. Step 5: Solve for x
    x = 176,287,037,340.80/472,895.96
  6. Step 6: Final answer
    x = 372,781.87

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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.