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Finding the Fourth Proportional to 429,381.36, 592,564.78 and 238,394.76

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Solution

The fourth proportional to 429,381.36, 592,564.78 and 238,394.76 is: 328,995.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,381.36 : 592,564.78 = 238,394.76 : x
  2. Step 2: Convert to fraction form
    429,381.36/592,564.78 = 238,394.76/x
  3. Step 3: Cross multiply
    429,381.36x = 592,564.78 × 238,394.76
  4. Step 4: Simplify right side
    429,381.36x = 141,264,338,512.55
  5. Step 5: Solve for x
    x = 141,264,338,512.55/429,381.36
  6. Step 6: Final answer
    x = 328,995.04

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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.