Home / 658,054,284.32-981,198,243.04-639,974,660.96

Finding the Fourth Proportional to 658,054,284.32, 981,198,243.04 and 639,974,660.96

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Solution

The fourth proportional to 658,054,284.32, 981,198,243.04 and 639,974,660.96 is: 954,240,444.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,054,284.32 : 981,198,243.04 = 639,974,660.96 : x
  2. Step 2: Convert to fraction form
    658,054,284.32/981,198,243.04 = 639,974,660.96/x
  3. Step 3: Cross multiply
    658,054,284.32x = 981,198,243.04 × 639,974,660.96
  4. Step 4: Simplify right side
    658,054,284.32x = 627,942,012,924,071,680
  5. Step 5: Solve for x
    x = 627,942,012,924,071,680/658,054,284.32
  6. Step 6: Final answer
    x = 954,240,444.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.