Home / 828,304.20-1,242,456.30-615,727.80

Finding the Fourth Proportional to 828,304.20, 1,242,456.30 and 615,727.80

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Solution

The fourth proportional to 828,304.20, 1,242,456.30 and 615,727.80 is: 923,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,304.20 : 1,242,456.30 = 615,727.80 : x
  2. Step 2: Convert to fraction form
    828,304.20/1,242,456.30 = 615,727.80/x
  3. Step 3: Cross multiply
    828,304.20x = 1,242,456.30 × 615,727.80
  4. Step 4: Simplify right side
    828,304.20x = 765,014,884,195.14
  5. Step 5: Solve for x
    x = 765,014,884,195.14/828,304.20
  6. Step 6: Final answer
    x = 923,591.70

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Double scale
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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.