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Finding the Fourth Proportional to 6,392,170.22, 8,818,386.04 and 3,911,509.04

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Solution

The fourth proportional to 6,392,170.22, 8,818,386.04 and 3,911,509.04 is: 5,396,163.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392,170.22 : 8,818,386.04 = 3,911,509.04 : x
  2. Step 2: Convert to fraction form
    6,392,170.22/8,818,386.04 = 3,911,509.04/x
  3. Step 3: Cross multiply
    6,392,170.22x = 8,818,386.04 × 3,911,509.04
  4. Step 4: Simplify right side
    6,392,170.22x = 34,493,196,713,669.80
  5. Step 5: Solve for x
    x = 34,493,196,713,669.80/6,392,170.22
  6. Step 6: Final answer
    x = 5,396,163.67

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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.