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Finding the Fourth Proportional to 543,254.80, 814,226.10 and 276,878.20

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Solution

The fourth proportional to 543,254.80, 814,226.10 and 276,878.20 is: 414,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,254.80 : 814,226.10 = 276,878.20 : x
  2. Step 2: Convert to fraction form
    543,254.80/814,226.10 = 276,878.20/x
  3. Step 3: Cross multiply
    543,254.80x = 814,226.10 × 276,878.20
  4. Step 4: Simplify right side
    543,254.80x = 225,441,456,961.02
  5. Step 5: Solve for x
    x = 225,441,456,961.02/543,254.80
  6. Step 6: Final answer
    x = 414,982.91

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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.