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Finding the Fourth Proportional to 576,111.97, 795,030.22 and 317,988.87

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Solution

The fourth proportional to 576,111.97, 795,030.22 and 317,988.87 is: 438,822.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,111.97 : 795,030.22 = 317,988.87 : x
  2. Step 2: Convert to fraction form
    576,111.97/795,030.22 = 317,988.87/x
  3. Step 3: Cross multiply
    576,111.97x = 795,030.22 × 317,988.87
  4. Step 4: Simplify right side
    576,111.97x = 252,810,761,273.65
  5. Step 5: Solve for x
    x = 252,810,761,273.65/576,111.97
  6. Step 6: Final answer
    x = 438,822.27

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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.