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Finding the Fourth Proportional to 429,679.36, 592,937.40 and 238,704.40

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Solution

The fourth proportional to 429,679.36, 592,937.40 and 238,704.40 is: 329,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,679.36 : 592,937.40 = 238,704.40 : x
  2. Step 2: Convert to fraction form
    429,679.36/592,937.40 = 238,704.40/x
  3. Step 3: Cross multiply
    429,679.36x = 592,937.40 × 238,704.40
  4. Step 4: Simplify right side
    429,679.36x = 141,536,766,304.56
  5. Step 5: Solve for x
    x = 141,536,766,304.56/429,679.36
  6. Step 6: Final answer
    x = 329,400.90

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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.