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Finding the Fourth Proportional to 543,269.76, 814,362.12 and 272,570.88

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Solution

The fourth proportional to 543,269.76, 814,362.12 and 272,570.88 is: 408,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,269.76 : 814,362.12 = 272,570.88 : x
  2. Step 2: Convert to fraction form
    543,269.76/814,362.12 = 272,570.88/x
  3. Step 3: Cross multiply
    543,269.76x = 814,362.12 × 272,570.88
  4. Step 4: Simplify right side
    543,269.76x = 221,971,399,687.07
  5. Step 5: Solve for x
    x = 221,971,399,687.07/543,269.76
  6. Step 6: Final answer
    x = 408,584.13

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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.