Home / 770,517.20-1,154,220.60-534,126.80

Finding the Fourth Proportional to 770,517.20, 1,154,220.60 and 534,126.80

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Solution

The fourth proportional to 770,517.20, 1,154,220.60 and 534,126.80 is: 800,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,517.20 : 1,154,220.60 = 534,126.80 : x
  2. Step 2: Convert to fraction form
    770,517.20/1,154,220.60 = 534,126.80/x
  3. Step 3: Cross multiply
    770,517.20x = 1,154,220.60 × 534,126.80
  4. Step 4: Simplify right side
    770,517.20x = 616,500,155,572.08
  5. Step 5: Solve for x
    x = 616,500,155,572.08/770,517.20
  6. Step 6: Final answer
    x = 800,112.13

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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.