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Finding the Fourth Proportional to 635,346,468.36, 876,506,154.03 and 396,777,476.97

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Solution

The fourth proportional to 635,346,468.36, 876,506,154.03 and 396,777,476.97 is: 547,383,069.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,346,468.36 : 876,506,154.03 = 396,777,476.97 : x
  2. Step 2: Convert to fraction form
    635,346,468.36/876,506,154.03 = 396,777,476.97/x
  3. Step 3: Cross multiply
    635,346,468.36x = 876,506,154.03 × 396,777,476.97
  4. Step 4: Simplify right side
    635,346,468.36x = 347,777,900,344,701,632
  5. Step 5: Solve for x
    x = 347,777,900,344,701,632/635,346,468.36
  6. Step 6: Final answer
    x = 547,383,069.97

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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.