Home / 778,991.80-1,168,487.70-441,902.20

Finding the Fourth Proportional to 778,991.80, 1,168,487.70 and 441,902.20

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Solution

The fourth proportional to 778,991.80, 1,168,487.70 and 441,902.20 is: 662,853.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,991.80 : 1,168,487.70 = 441,902.20 : x
  2. Step 2: Convert to fraction form
    778,991.80/1,168,487.70 = 441,902.20/x
  3. Step 3: Cross multiply
    778,991.80x = 1,168,487.70 × 441,902.20
  4. Step 4: Simplify right side
    778,991.80x = 516,357,285,302.94
  5. Step 5: Solve for x
    x = 516,357,285,302.94/778,991.80
  6. Step 6: Final answer
    x = 662,853.30

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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.