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Finding the Fourth Proportional to 448,871.64, 619,455.81 and 247,680.60

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Solution

The fourth proportional to 448,871.64, 619,455.81 and 247,680.60 is: 341,806.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,871.64 : 619,455.81 = 247,680.60 : x
  2. Step 2: Convert to fraction form
    448,871.64/619,455.81 = 247,680.60/x
  3. Step 3: Cross multiply
    448,871.64x = 619,455.81 × 247,680.60
  4. Step 4: Simplify right side
    448,871.64x = 153,427,186,694.29
  5. Step 5: Solve for x
    x = 153,427,186,694.29/448,871.64
  6. Step 6: Final answer
    x = 341,806.37

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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.