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Finding the Fourth Proportional to 449,011.44, 619,634.52 and 247,806

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Solution

The fourth proportional to 449,011.44, 619,634.52 and 247,806 is: 341,971.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,011.44 : 619,634.52 = 247,806 : x
  2. Step 2: Convert to fraction form
    449,011.44/619,634.52 = 247,806/x
  3. Step 3: Cross multiply
    449,011.44x = 619,634.52 × 247,806
  4. Step 4: Simplify right side
    449,011.44x = 153,549,151,863.12
  5. Step 5: Solve for x
    x = 153,549,151,863.12/449,011.44
  6. Step 6: Final answer
    x = 341,971.58

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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.