Home / 766,955.20-1,150,432.80-543,006.40

Finding the Fourth Proportional to 766,955.20, 1,150,432.80 and 543,006.40

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Solution

The fourth proportional to 766,955.20, 1,150,432.80 and 543,006.40 is: 814,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,955.20 : 1,150,432.80 = 543,006.40 : x
  2. Step 2: Convert to fraction form
    766,955.20/1,150,432.80 = 543,006.40/x
  3. Step 3: Cross multiply
    766,955.20x = 1,150,432.80 × 543,006.40
  4. Step 4: Simplify right side
    766,955.20x = 624,692,373,169.92
  5. Step 5: Solve for x
    x = 624,692,373,169.92/766,955.20
  6. Step 6: Final answer
    x = 814,509.60

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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.