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Finding the Fourth Proportional to 453,849.60, 681,033.60 and 313,708.80

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Solution

The fourth proportional to 453,849.60, 681,033.60 and 313,708.80 is: 470,742.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,849.60 : 681,033.60 = 313,708.80 : x
  2. Step 2: Convert to fraction form
    453,849.60/681,033.60 = 313,708.80/x
  3. Step 3: Cross multiply
    453,849.60x = 681,033.60 × 313,708.80
  4. Step 4: Simplify right side
    453,849.60x = 213,646,233,415.68
  5. Step 5: Solve for x
    x = 213,646,233,415.68/453,849.60
  6. Step 6: Final answer
    x = 470,742.36

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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.