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Finding the Fourth Proportional to 767,637,536.40, 1,149,755,693.40 and 665,600,864.40

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Solution

The fourth proportional to 767,637,536.40, 1,149,755,693.40 and 665,600,864.40 is: 996,926,735.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,637,536.40 : 1,149,755,693.40 = 665,600,864.40 : x
  2. Step 2: Convert to fraction form
    767,637,536.40/1,149,755,693.40 = 665,600,864.40/x
  3. Step 3: Cross multiply
    767,637,536.40x = 1,149,755,693.40 × 665,600,864.40
  4. Step 4: Simplify right side
    767,637,536.40x = 765,278,383,375,861,376
  5. Step 5: Solve for x
    x = 765,278,383,375,861,376/767,637,536.40
  6. Step 6: Final answer
    x = 996,926,735.72

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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.