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Finding the Fourth Proportional to 448,830.68, 619,310.22 and 267,539.36

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Solution

The fourth proportional to 448,830.68, 619,310.22 and 267,539.36 is: 369,158.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,830.68 : 619,310.22 = 267,539.36 : x
  2. Step 2: Convert to fraction form
    448,830.68/619,310.22 = 267,539.36/x
  3. Step 3: Cross multiply
    448,830.68x = 619,310.22 × 267,539.36
  4. Step 4: Simplify right side
    448,830.68x = 165,689,859,900.26
  5. Step 5: Solve for x
    x = 165,689,859,900.26/448,830.68
  6. Step 6: Final answer
    x = 369,158.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.