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Finding the Fourth Proportional to 462,933, 638,851.38 and 250,965

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Solution

The fourth proportional to 462,933, 638,851.38 and 250,965 is: 346,333.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,933 : 638,851.38 = 250,965 : x
  2. Step 2: Convert to fraction form
    462,933/638,851.38 = 250,965/x
  3. Step 3: Cross multiply
    462,933x = 638,851.38 × 250,965
  4. Step 4: Simplify right side
    462,933x = 160,329,336,581.70
  5. Step 5: Solve for x
    x = 160,329,336,581.70/462,933
  6. Step 6: Final answer
    x = 346,333.78

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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.