Home / 771,451.20-1,155,621.60-535,060.80

Finding the Fourth Proportional to 771,451.20, 1,155,621.60 and 535,060.80

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Solution

The fourth proportional to 771,451.20, 1,155,621.60 and 535,060.80 is: 801,512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,451.20 : 1,155,621.60 = 535,060.80 : x
  2. Step 2: Convert to fraction form
    771,451.20/1,155,621.60 = 535,060.80/x
  3. Step 3: Cross multiply
    771,451.20x = 1,155,621.60 × 535,060.80
  4. Step 4: Simplify right side
    771,451.20x = 618,327,817,793.28
  5. Step 5: Solve for x
    x = 618,327,817,793.28/771,451.20
  6. Step 6: Final answer
    x = 801,512.55

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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.