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Finding the Fourth Proportional to 611,998.74, 844,206.39 and 382,156.92

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Solution

The fourth proportional to 611,998.74, 844,206.39 and 382,156.92 is: 527,156.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,998.74 : 844,206.39 = 382,156.92 : x
  2. Step 2: Convert to fraction form
    611,998.74/844,206.39 = 382,156.92/x
  3. Step 3: Cross multiply
    611,998.74x = 844,206.39 × 382,156.92
  4. Step 4: Simplify right side
    611,998.74x = 322,619,313,846.72
  5. Step 5: Solve for x
    x = 322,619,313,846.72/611,998.74
  6. Step 6: Final answer
    x = 527,156.83

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.