Home / 871,882,380.72-1,203,489,244.80-519,568,850.16

Finding the Fourth Proportional to 871,882,380.72, 1,203,489,244.80 and 519,568,850.16

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Solution

The fourth proportional to 871,882,380.72, 1,203,489,244.80 and 519,568,850.16 is: 717,178,758.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,882,380.72 : 1,203,489,244.80 = 519,568,850.16 : x
  2. Step 2: Convert to fraction form
    871,882,380.72/1,203,489,244.80 = 519,568,850.16/x
  3. Step 3: Cross multiply
    871,882,380.72x = 1,203,489,244.80 × 519,568,850.16
  4. Step 4: Simplify right side
    871,882,380.72x = 625,295,523,100,662,784
  5. Step 5: Solve for x
    x = 625,295,523,100,662,784/871,882,380.72
  6. Step 6: Final answer
    x = 717,178,758.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.