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Finding the Fourth Proportional to 448,487.10, 619,062.15 and 267,255.87

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Solution

The fourth proportional to 448,487.10, 619,062.15 and 267,255.87 is: 368,902.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,487.10 : 619,062.15 = 267,255.87 : x
  2. Step 2: Convert to fraction form
    448,487.10/619,062.15 = 267,255.87/x
  3. Step 3: Cross multiply
    448,487.10x = 619,062.15 × 267,255.87
  4. Step 4: Simplify right side
    448,487.10x = 165,447,993,482.32
  5. Step 5: Solve for x
    x = 165,447,993,482.32/448,487.10
  6. Step 6: Final answer
    x = 368,902.46

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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.