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Finding the Fourth Proportional to 4,998,997.92, 7,498,776.69 and 1,404,484.31

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Solution

The fourth proportional to 4,998,997.92, 7,498,776.69 and 1,404,484.31 is: 2,106,805.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998,997.92 : 7,498,776.69 = 1,404,484.31 : x
  2. Step 2: Convert to fraction form
    4,998,997.92/7,498,776.69 = 1,404,484.31/x
  3. Step 3: Cross multiply
    4,998,997.92x = 7,498,776.69 × 1,404,484.31
  4. Step 4: Simplify right side
    4,998,997.92x = 10,531,914,224,045.68
  5. Step 5: Solve for x
    x = 10,531,914,224,045.68/4,998,997.92
  6. Step 6: Final answer
    x = 2,106,805.08

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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.