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Finding the Fourth Proportional to 429,391.88, 592,579.29 and 238,405.25

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Solution

The fourth proportional to 429,391.88, 592,579.29 and 238,405.25 is: 329,009.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,391.88 : 592,579.29 = 238,405.25 : x
  2. Step 2: Convert to fraction form
    429,391.88/592,579.29 = 238,405.25/x
  3. Step 3: Cross multiply
    429,391.88x = 592,579.29 × 238,405.25
  4. Step 4: Simplify right side
    429,391.88x = 141,274,013,777.27
  5. Step 5: Solve for x
    x = 141,274,013,777.27/429,391.88
  6. Step 6: Final answer
    x = 329,009.51

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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.