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Finding the Fourth Proportional to 425,391.12, 586,999.64 and 250,934.12

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Solution

The fourth proportional to 425,391.12, 586,999.64 and 250,934.12 is: 346,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,391.12 : 586,999.64 = 250,934.12 : x
  2. Step 2: Convert to fraction form
    425,391.12/586,999.64 = 250,934.12/x
  3. Step 3: Cross multiply
    425,391.12x = 586,999.64 × 250,934.12
  4. Step 4: Simplify right side
    425,391.12x = 147,298,238,103.72
  5. Step 5: Solve for x
    x = 147,298,238,103.72/425,391.12
  6. Step 6: Final answer
    x = 346,265.43

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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.