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Finding the Fourth Proportional to 448,603.38, 619,001.64 and 267,310.80

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Solution

The fourth proportional to 448,603.38, 619,001.64 and 267,310.80 is: 368,846.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,603.38 : 619,001.64 = 267,310.80 : x
  2. Step 2: Convert to fraction form
    448,603.38/619,001.64 = 267,310.80/x
  3. Step 3: Cross multiply
    448,603.38x = 619,001.64 × 267,310.80
  4. Step 4: Simplify right side
    448,603.38x = 165,465,823,589.71
  5. Step 5: Solve for x
    x = 165,465,823,589.71/448,603.38
  6. Step 6: Final answer
    x = 368,846.58

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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.