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Finding the Fourth Proportional to 834,682.80, 1,252,024.20 and 243,706.80

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Solution

The fourth proportional to 834,682.80, 1,252,024.20 and 243,706.80 is: 365,560.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,682.80 : 1,252,024.20 = 243,706.80 : x
  2. Step 2: Convert to fraction form
    834,682.80/1,252,024.20 = 243,706.80/x
  3. Step 3: Cross multiply
    834,682.80x = 1,252,024.20 × 243,706.80
  4. Step 4: Simplify right side
    834,682.80x = 305,126,811,304.56
  5. Step 5: Solve for x
    x = 305,126,811,304.56/834,682.80
  6. Step 6: Final answer
    x = 365,560.20

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Double scale
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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.