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Finding the Fourth Proportional to 448,485.95, 619,060.59 and 267,254.73

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Solution

The fourth proportional to 448,485.95, 619,060.59 and 267,254.73 is: 368,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,485.95 : 619,060.59 = 267,254.73 : x
  2. Step 2: Convert to fraction form
    448,485.95/619,060.59 = 267,254.73/x
  3. Step 3: Cross multiply
    448,485.95x = 619,060.59 × 267,254.73
  4. Step 4: Simplify right side
    448,485.95x = 165,446,870,834.09
  5. Step 5: Solve for x
    x = 165,446,870,834.09/448,485.95
  6. Step 6: Final answer
    x = 368,900.90

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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.