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Finding the Fourth Proportional to 534,689.30, 737,870.82 and 292,986.92

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Solution

The fourth proportional to 534,689.30, 737,870.82 and 292,986.92 is: 404,321.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,689.30 : 737,870.82 = 292,986.92 : x
  2. Step 2: Convert to fraction form
    534,689.30/737,870.82 = 292,986.92/x
  3. Step 3: Cross multiply
    534,689.30x = 737,870.82 × 292,986.92
  4. Step 4: Simplify right side
    534,689.30x = 216,186,499,655.65
  5. Step 5: Solve for x
    x = 216,186,499,655.65/534,689.30
  6. Step 6: Final answer
    x = 404,321.72

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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.