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Finding the Fourth Proportional to 448,485.45, 619,059.90 and 267,254.23

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Solution

The fourth proportional to 448,485.45, 619,059.90 and 267,254.23 is: 368,900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,485.45 : 619,059.90 = 267,254.23 : x
  2. Step 2: Convert to fraction form
    448,485.45/619,059.90 = 267,254.23/x
  3. Step 3: Cross multiply
    448,485.45x = 619,059.90 × 267,254.23
  4. Step 4: Simplify right side
    448,485.45x = 165,446,375,562.11
  5. Step 5: Solve for x
    x = 165,446,375,562.11/448,485.45
  6. Step 6: Final answer
    x = 368,900.21

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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.