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Finding the Fourth Proportional to 448,654.59, 619,128.23 and 267,272.57

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Solution

The fourth proportional to 448,654.59, 619,128.23 and 267,272.57 is: 368,827.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,654.59 : 619,128.23 = 267,272.57 : x
  2. Step 2: Convert to fraction form
    448,654.59/619,128.23 = 267,272.57/x
  3. Step 3: Cross multiply
    448,654.59x = 619,128.23 × 267,272.57
  4. Step 4: Simplify right side
    448,654.59x = 165,475,993,403.11
  5. Step 5: Solve for x
    x = 165,475,993,403.11/448,654.59
  6. Step 6: Final answer
    x = 368,827.15

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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.