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Finding the Fourth Proportional to 585,966.48, 878,949.72 and 211,902

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Solution

The fourth proportional to 585,966.48, 878,949.72 and 211,902 is: 317,853

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,966.48 : 878,949.72 = 211,902 : x
  2. Step 2: Convert to fraction form
    585,966.48/878,949.72 = 211,902/x
  3. Step 3: Cross multiply
    585,966.48x = 878,949.72 × 211,902
  4. Step 4: Simplify right side
    585,966.48x = 186,251,203,567.44
  5. Step 5: Solve for x
    x = 186,251,203,567.44/585,966.48
  6. Step 6: Final answer
    x = 317,853

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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.