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Finding the Fourth Proportional to 429,367.78, 592,504.41 and 238,368.87

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Solution

The fourth proportional to 429,367.78, 592,504.41 and 238,368.87 is: 328,936.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,367.78 : 592,504.41 = 238,368.87 : x
  2. Step 2: Convert to fraction form
    429,367.78/592,504.41 = 238,368.87/x
  3. Step 3: Cross multiply
    429,367.78x = 592,504.41 × 238,368.87
  4. Step 4: Simplify right side
    429,367.78x = 141,234,604,233.15
  5. Step 5: Solve for x
    x = 141,234,604,233.15/429,367.78
  6. Step 6: Final answer
    x = 328,936.20

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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.