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Finding the Fourth Proportional to 3,955,522.86, 5,929,765.29 and 1,430,616.78

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Solution

The fourth proportional to 3,955,522.86, 5,929,765.29 and 1,430,616.78 is: 2,144,652.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955,522.86 : 5,929,765.29 = 1,430,616.78 : x
  2. Step 2: Convert to fraction form
    3,955,522.86/5,929,765.29 = 1,430,616.78/x
  3. Step 3: Cross multiply
    3,955,522.86x = 5,929,765.29 × 1,430,616.78
  4. Step 4: Simplify right side
    3,955,522.86x = 8,483,221,725,335.57
  5. Step 5: Solve for x
    x = 8,483,221,725,335.57/3,955,522.86
  6. Step 6: Final answer
    x = 2,144,652.43

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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.