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Finding the Fourth Proportional to 4,375,312.70, 6,562,969.05 and 4,343,819.90

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Solution

The fourth proportional to 4,375,312.70, 6,562,969.05 and 4,343,819.90 is: 6,515,729.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,375,312.70 : 6,562,969.05 = 4,343,819.90 : x
  2. Step 2: Convert to fraction form
    4,375,312.70/6,562,969.05 = 4,343,819.90/x
  3. Step 3: Cross multiply
    4,375,312.70x = 6,562,969.05 × 4,343,819.90
  4. Step 4: Simplify right side
    4,375,312.70x = 28,508,355,562,474.10
  5. Step 5: Solve for x
    x = 28,508,355,562,474.10/4,375,312.70
  6. Step 6: Final answer
    x = 6,515,729.85

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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.