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Finding the Fourth Proportional to 448,630.12, 619,087.71 and 267,338.01

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Solution

The fourth proportional to 448,630.12, 619,087.71 and 267,338.01 is: 368,913.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,630.12 : 619,087.71 = 267,338.01 : x
  2. Step 2: Convert to fraction form
    448,630.12/619,087.71 = 267,338.01/x
  3. Step 3: Cross multiply
    448,630.12x = 619,087.71 × 267,338.01
  4. Step 4: Simplify right side
    448,630.12x = 165,505,676,406.86
  5. Step 5: Solve for x
    x = 165,505,676,406.86/448,630.12
  6. Step 6: Final answer
    x = 368,913.43

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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.