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Finding the Fourth Proportional to 417,872.74, 576,665.13 and 226,885.54

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Solution

The fourth proportional to 417,872.74, 576,665.13 and 226,885.54 is: 313,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,872.74 : 576,665.13 = 226,885.54 : x
  2. Step 2: Convert to fraction form
    417,872.74/576,665.13 = 226,885.54/x
  3. Step 3: Cross multiply
    417,872.74x = 576,665.13 × 226,885.54
  4. Step 4: Simplify right side
    417,872.74x = 130,836,979,419.22
  5. Step 5: Solve for x
    x = 130,836,979,419.22/417,872.74
  6. Step 6: Final answer
    x = 313,102.45

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1.5x scale

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.