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Finding the Fourth Proportional to 429,578.57, 592,329.31 and 274,320.74

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Solution

The fourth proportional to 429,578.57, 592,329.31 and 274,320.74 is: 378,250.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,578.57 : 592,329.31 = 274,320.74 : x
  2. Step 2: Convert to fraction form
    429,578.57/592,329.31 = 274,320.74/x
  3. Step 3: Cross multiply
    429,578.57x = 592,329.31 × 274,320.74
  4. Step 4: Simplify right side
    429,578.57x = 162,488,215,437.91
  5. Step 5: Solve for x
    x = 162,488,215,437.91/429,578.57
  6. Step 6: Final answer
    x = 378,250.28

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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.