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Finding the Fourth Proportional to 448,607.88, 619,007.85 and 267,315.30

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Solution

The fourth proportional to 448,607.88, 619,007.85 and 267,315.30 is: 368,852.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,607.88 : 619,007.85 = 267,315.30 : x
  2. Step 2: Convert to fraction form
    448,607.88/619,007.85 = 267,315.30/x
  3. Step 3: Cross multiply
    448,607.88x = 619,007.85 × 267,315.30
  4. Step 4: Simplify right side
    448,607.88x = 165,470,269,125.11
  5. Step 5: Solve for x
    x = 165,470,269,125.11/448,607.88
  6. Step 6: Final answer
    x = 368,852.79

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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.