Home / 804,818,487.40-1,207,227,731.10-659,416,229.80

Finding the Fourth Proportional to 804,818,487.40, 1,207,227,731.10 and 659,416,229.80

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Solution

The fourth proportional to 804,818,487.40, 1,207,227,731.10 and 659,416,229.80 is: 989,124,344.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,818,487.40 : 1,207,227,731.10 = 659,416,229.80 : x
  2. Step 2: Convert to fraction form
    804,818,487.40/1,207,227,731.10 = 659,416,229.80/x
  3. Step 3: Cross multiply
    804,818,487.40x = 1,207,227,731.10 × 659,416,229.80
  4. Step 4: Simplify right side
    804,818,487.40x = 796,065,558,951,970,048
  5. Step 5: Solve for x
    x = 796,065,558,951,970,048/804,818,487.40
  6. Step 6: Final answer
    x = 989,124,344.70

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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.