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Finding the Fourth Proportional to 671,808.80, 1,007,713.20 and 222,408.80

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Solution

The fourth proportional to 671,808.80, 1,007,713.20 and 222,408.80 is: 333,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,808.80 : 1,007,713.20 = 222,408.80 : x
  2. Step 2: Convert to fraction form
    671,808.80/1,007,713.20 = 222,408.80/x
  3. Step 3: Cross multiply
    671,808.80x = 1,007,713.20 × 222,408.80
  4. Step 4: Simplify right side
    671,808.80x = 224,124,283,556.16
  5. Step 5: Solve for x
    x = 224,124,283,556.16/671,808.80
  6. Step 6: Final answer
    x = 333,613.20

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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.