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Finding the Fourth Proportional to 996,911,665.90, 1,375,717,943.55 and 605,897,061.10

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Solution

The fourth proportional to 996,911,665.90, 1,375,717,943.55 and 605,897,061.10 is: 836,125,694.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,911,665.90 : 1,375,717,943.55 = 605,897,061.10 : x
  2. Step 2: Convert to fraction form
    996,911,665.90/1,375,717,943.55 = 605,897,061.10/x
  3. Step 3: Cross multiply
    996,911,665.90x = 1,375,717,943.55 × 605,897,061.10
  4. Step 4: Simplify right side
    996,911,665.90x = 833,543,458,899,480,704
  5. Step 5: Solve for x
    x = 833,543,458,899,480,704/996,911,665.90
  6. Step 6: Final answer
    x = 836,125,694.39

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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.