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Finding the Fourth Proportional to 636,844.14, 878,843.60 and 350,363.54

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Solution

The fourth proportional to 636,844.14, 878,843.60 and 350,363.54 is: 483,500.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,844.14 : 878,843.60 = 350,363.54 : x
  2. Step 2: Convert to fraction form
    636,844.14/878,843.60 = 350,363.54/x
  3. Step 3: Cross multiply
    636,844.14x = 878,843.60 × 350,363.54
  4. Step 4: Simplify right side
    636,844.14x = 307,914,748,656.31
  5. Step 5: Solve for x
    x = 307,914,748,656.31/636,844.14
  6. Step 6: Final answer
    x = 483,500.95

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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.