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Finding the Fourth Proportional to 3,652,996.86, 5,478,608.97 and 1,521,918.30

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Solution

The fourth proportional to 3,652,996.86, 5,478,608.97 and 1,521,918.30 is: 2,282,508.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,652,996.86 : 5,478,608.97 = 1,521,918.30 : x
  2. Step 2: Convert to fraction form
    3,652,996.86/5,478,608.97 = 1,521,918.30/x
  3. Step 3: Cross multiply
    3,652,996.86x = 5,478,608.97 × 1,521,918.30
  4. Step 4: Simplify right side
    3,652,996.86x = 8,337,995,249,987.15
  5. Step 5: Solve for x
    x = 8,337,995,249,987.15/3,652,996.86
  6. Step 6: Final answer
    x = 2,282,508.19

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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.