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Finding the Fourth Proportional to 417,679.82, 576,398.05 and 226,693.23

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Solution

The fourth proportional to 417,679.82, 576,398.05 and 226,693.23 is: 312,836.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,679.82 : 576,398.05 = 226,693.23 : x
  2. Step 2: Convert to fraction form
    417,679.82/576,398.05 = 226,693.23/x
  3. Step 3: Cross multiply
    417,679.82x = 576,398.05 × 226,693.23
  4. Step 4: Simplify right side
    417,679.82x = 130,665,535,720.20
  5. Step 5: Solve for x
    x = 130,665,535,720.20/417,679.82
  6. Step 6: Final answer
    x = 312,836.60

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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.