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Finding the Fourth Proportional to 557,908.80, 836,863.20 and 344,846.40

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Solution

The fourth proportional to 557,908.80, 836,863.20 and 344,846.40 is: 517,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,908.80 : 836,863.20 = 344,846.40 : x
  2. Step 2: Convert to fraction form
    557,908.80/836,863.20 = 344,846.40/x
  3. Step 3: Cross multiply
    557,908.80x = 836,863.20 × 344,846.40
  4. Step 4: Simplify right side
    557,908.80x = 288,589,261,812.48
  5. Step 5: Solve for x
    x = 288,589,261,812.48/557,908.80
  6. Step 6: Final answer
    x = 517,269.60

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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.