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Finding the Fourth Proportional to 6,381,489.66, 8,806,483.11 and 3,480,943.74

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Solution

The fourth proportional to 6,381,489.66, 8,806,483.11 and 3,480,943.74 is: 4,803,717.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381,489.66 : 8,806,483.11 = 3,480,943.74 : x
  2. Step 2: Convert to fraction form
    6,381,489.66/8,806,483.11 = 3,480,943.74/x
  3. Step 3: Cross multiply
    6,381,489.66x = 8,806,483.11 × 3,480,943.74
  4. Step 4: Simplify right side
    6,381,489.66x = 30,654,872,253,170.23
  5. Step 5: Solve for x
    x = 30,654,872,253,170.23/6,381,489.66
  6. Step 6: Final answer
    x = 4,803,717.30

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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.