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Finding the Fourth Proportional to 319,701.13, 479,513.42 and 248,694.71

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Solution

The fourth proportional to 319,701.13, 479,513.42 and 248,694.71 is: 373,012.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,701.13 : 479,513.42 = 248,694.71 : x
  2. Step 2: Convert to fraction form
    319,701.13/479,513.42 = 248,694.71/x
  3. Step 3: Cross multiply
    319,701.13x = 479,513.42 × 248,694.71
  4. Step 4: Simplify right side
    319,701.13x = 119,252,448,219.57
  5. Step 5: Solve for x
    x = 119,252,448,219.57/319,701.13
  6. Step 6: Final answer
    x = 373,012.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.