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Finding the Fourth Proportional to 397,373.17, 548,358.28 and 225,302.71

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Solution

The fourth proportional to 397,373.17, 548,358.28 and 225,302.71 is: 310,908.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,373.17 : 548,358.28 = 225,302.71 : x
  2. Step 2: Convert to fraction form
    397,373.17/548,358.28 = 225,302.71/x
  3. Step 3: Cross multiply
    397,373.17x = 548,358.28 × 225,302.71
  4. Step 4: Simplify right side
    397,373.17x = 123,546,606,534.94
  5. Step 5: Solve for x
    x = 123,546,606,534.94/397,373.17
  6. Step 6: Final answer
    x = 310,908.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.