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Finding the Fourth Proportional to 448,604.88, 619,003.71 and 267,312.30

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Solution

The fourth proportional to 448,604.88, 619,003.71 and 267,312.30 is: 368,848.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,604.88 : 619,003.71 = 267,312.30 : x
  2. Step 2: Convert to fraction form
    448,604.88/619,003.71 = 267,312.30/x
  3. Step 3: Cross multiply
    448,604.88x = 619,003.71 × 267,312.30
  4. Step 4: Simplify right side
    448,604.88x = 165,467,305,428.63
  5. Step 5: Solve for x
    x = 165,467,305,428.63/448,604.88
  6. Step 6: Final answer
    x = 368,848.65

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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.