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Finding the Fourth Proportional to 671,796,613.20, 1,007,694,919.80 and 671,796,613.20

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Solution

The fourth proportional to 671,796,613.20, 1,007,694,919.80 and 671,796,613.20 is: 1,007,694,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,796,613.20 : 1,007,694,919.80 = 671,796,613.20 : x
  2. Step 2: Convert to fraction form
    671,796,613.20/1,007,694,919.80 = 671,796,613.20/x
  3. Step 3: Cross multiply
    671,796,613.20x = 1,007,694,919.80 × 671,796,613.20
  4. Step 4: Simplify right side
    671,796,613.20x = 676,966,034,260,485,632
  5. Step 5: Solve for x
    x = 676,966,034,260,485,632/671,796,613.20
  6. Step 6: Final answer
    x = 1,007,694,919.80

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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.