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Finding the Fourth Proportional to 484,630.34, 668,780.73 and 269,768.90

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Solution

The fourth proportional to 484,630.34, 668,780.73 and 269,768.90 is: 372,275.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,630.34 : 668,780.73 = 269,768.90 : x
  2. Step 2: Convert to fraction form
    484,630.34/668,780.73 = 269,768.90/x
  3. Step 3: Cross multiply
    484,630.34x = 668,780.73 × 269,768.90
  4. Step 4: Simplify right side
    484,630.34x = 180,416,241,873.30
  5. Step 5: Solve for x
    x = 180,416,241,873.30/484,630.34
  6. Step 6: Final answer
    x = 372,275.99

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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.