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Finding the Fourth Proportional to 659,695.22, 989,540.27 and 238,872.66

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Solution

The fourth proportional to 659,695.22, 989,540.27 and 238,872.66 is: 358,308.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,695.22 : 989,540.27 = 238,872.66 : x
  2. Step 2: Convert to fraction form
    659,695.22/989,540.27 = 238,872.66/x
  3. Step 3: Cross multiply
    659,695.22x = 989,540.27 × 238,872.66
  4. Step 4: Simplify right side
    659,695.22x = 236,374,116,472.02
  5. Step 5: Solve for x
    x = 236,374,116,472.02/659,695.22
  6. Step 6: Final answer
    x = 358,308.06

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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.