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Finding the Fourth Proportional to 349,455.33, 482,132.30 and 284,813.42

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Solution

The fourth proportional to 349,455.33, 482,132.30 and 284,813.42 is: 392,947.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,455.33 : 482,132.30 = 284,813.42 : x
  2. Step 2: Convert to fraction form
    349,455.33/482,132.30 = 284,813.42/x
  3. Step 3: Cross multiply
    349,455.33x = 482,132.30 × 284,813.42
  4. Step 4: Simplify right side
    349,455.33x = 137,317,745,420.74
  5. Step 5: Solve for x
    x = 137,317,745,420.74/349,455.33
  6. Step 6: Final answer
    x = 392,947.92

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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.