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Finding the Fourth Proportional to 559,266.80, 838,900.20 and 543,714.80

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Solution

The fourth proportional to 559,266.80, 838,900.20 and 543,714.80 is: 815,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,266.80 : 838,900.20 = 543,714.80 : x
  2. Step 2: Convert to fraction form
    559,266.80/838,900.20 = 543,714.80/x
  3. Step 3: Cross multiply
    559,266.80x = 838,900.20 × 543,714.80
  4. Step 4: Simplify right side
    559,266.80x = 456,122,454,462.96
  5. Step 5: Solve for x
    x = 456,122,454,462.96/559,266.80
  6. Step 6: Final answer
    x = 815,572.20

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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.