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Finding the Fourth Proportional to 543,318.80, 814,978.20 and 277,598.30

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Solution

The fourth proportional to 543,318.80, 814,978.20 and 277,598.30 is: 416,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,318.80 : 814,978.20 = 277,598.30 : x
  2. Step 2: Convert to fraction form
    543,318.80/814,978.20 = 277,598.30/x
  3. Step 3: Cross multiply
    543,318.80x = 814,978.20 × 277,598.30
  4. Step 4: Simplify right side
    543,318.80x = 226,236,562,857.06
  5. Step 5: Solve for x
    x = 226,236,562,857.06/543,318.80
  6. Step 6: Final answer
    x = 416,397.45

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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.