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Finding the Fourth Proportional to 2,480,668.80, 3,721,003.20 and 2,447,491.20

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Solution

The fourth proportional to 2,480,668.80, 3,721,003.20 and 2,447,491.20 is: 3,671,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480,668.80 : 3,721,003.20 = 2,447,491.20 : x
  2. Step 2: Convert to fraction form
    2,480,668.80/3,721,003.20 = 2,447,491.20/x
  3. Step 3: Cross multiply
    2,480,668.80x = 3,721,003.20 × 2,447,491.20
  4. Step 4: Simplify right side
    2,480,668.80x = 9,107,122,587,171.84
  5. Step 5: Solve for x
    x = 9,107,122,587,171.84/2,480,668.80
  6. Step 6: Final answer
    x = 3,671,236.80

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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.