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Finding the Fourth Proportional to 448,495.15, 619,073.28 and 267,263.92

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Solution

The fourth proportional to 448,495.15, 619,073.28 and 267,263.92 is: 368,913.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,495.15 : 619,073.28 = 267,263.92 : x
  2. Step 2: Convert to fraction form
    448,495.15/619,073.28 = 267,263.92/x
  3. Step 3: Cross multiply
    448,495.15x = 619,073.28 × 267,263.92
  4. Step 4: Simplify right side
    448,495.15x = 165,455,951,580.06
  5. Step 5: Solve for x
    x = 165,455,951,580.06/448,495.15
  6. Step 6: Final answer
    x = 368,913.58

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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.