Home / 766,803.20-1,150,204.80-542,854.40

Finding the Fourth Proportional to 766,803.20, 1,150,204.80 and 542,854.40

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Solution

The fourth proportional to 766,803.20, 1,150,204.80 and 542,854.40 is: 814,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,803.20 : 1,150,204.80 = 542,854.40 : x
  2. Step 2: Convert to fraction form
    766,803.20/1,150,204.80 = 542,854.40/x
  3. Step 3: Cross multiply
    766,803.20x = 1,150,204.80 × 542,854.40
  4. Step 4: Simplify right side
    766,803.20x = 624,393,736,581.12
  5. Step 5: Solve for x
    x = 624,393,736,581.12/766,803.20
  6. Step 6: Final answer
    x = 814,281.60

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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.