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Finding the Fourth Proportional to 6,651,806.40, 9,977,709.60 and 6,588,820.80

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Solution

The fourth proportional to 6,651,806.40, 9,977,709.60 and 6,588,820.80 is: 9,883,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651,806.40 : 9,977,709.60 = 6,588,820.80 : x
  2. Step 2: Convert to fraction form
    6,651,806.40/9,977,709.60 = 6,588,820.80/x
  3. Step 3: Cross multiply
    6,651,806.40x = 9,977,709.60 × 6,588,820.80
  4. Step 4: Simplify right side
    6,651,806.40x = 65,741,340,548,839.67
  5. Step 5: Solve for x
    x = 65,741,340,548,839.67/6,651,806.40
  6. Step 6: Final answer
    x = 9,883,231.20

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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.