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Finding the Fourth Proportional to 543,009.20, 814,513.80 and 247,521.20

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Solution

The fourth proportional to 543,009.20, 814,513.80 and 247,521.20 is: 371,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,009.20 : 814,513.80 = 247,521.20 : x
  2. Step 2: Convert to fraction form
    543,009.20/814,513.80 = 247,521.20/x
  3. Step 3: Cross multiply
    543,009.20x = 814,513.80 × 247,521.20
  4. Step 4: Simplify right side
    543,009.20x = 201,609,433,192.56
  5. Step 5: Solve for x
    x = 201,609,433,192.56/543,009.20
  6. Step 6: Final answer
    x = 371,281.80

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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.