Home / 679,914,531.20-1,019,871,796.80-531,961,356.80

Finding the Fourth Proportional to 679,914,531.20, 1,019,871,796.80 and 531,961,356.80

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Solution

The fourth proportional to 679,914,531.20, 1,019,871,796.80 and 531,961,356.80 is: 797,942,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,914,531.20 : 1,019,871,796.80 = 531,961,356.80 : x
  2. Step 2: Convert to fraction form
    679,914,531.20/1,019,871,796.80 = 531,961,356.80/x
  3. Step 3: Cross multiply
    679,914,531.20x = 1,019,871,796.80 × 531,961,356.80
  4. Step 4: Simplify right side
    679,914,531.20x = 542,532,384,787,781,888
  5. Step 5: Solve for x
    x = 542,532,384,787,781,888/679,914,531.20
  6. Step 6: Final answer
    x = 797,942,035.20

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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.