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Finding the Fourth Proportional to 537,614.80, 806,422.20 and 371,726.80

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Solution

The fourth proportional to 537,614.80, 806,422.20 and 371,726.80 is: 557,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,614.80 : 806,422.20 = 371,726.80 : x
  2. Step 2: Convert to fraction form
    537,614.80/806,422.20 = 371,726.80/x
  3. Step 3: Cross multiply
    537,614.80x = 806,422.20 × 371,726.80
  4. Step 4: Simplify right side
    537,614.80x = 299,768,743,854.96
  5. Step 5: Solve for x
    x = 299,768,743,854.96/537,614.80
  6. Step 6: Final answer
    x = 557,590.20

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Similar ratio
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1.5x scale

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.