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Finding the Fourth Proportional to 448,494.15, 619,071.90 and 267,262.92

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Solution

The fourth proportional to 448,494.15, 619,071.90 and 267,262.92 is: 368,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,494.15 : 619,071.90 = 267,262.92 : x
  2. Step 2: Convert to fraction form
    448,494.15/619,071.90 = 267,262.92/x
  3. Step 3: Cross multiply
    448,494.15x = 619,071.90 × 267,262.92
  4. Step 4: Simplify right side
    448,494.15x = 165,454,963,683.95
  5. Step 5: Solve for x
    x = 165,454,963,683.95/448,494.15
  6. Step 6: Final answer
    x = 368,912.20

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1.5x scale

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.