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Finding the Fourth Proportional to 484,654.71, 668,835.22 and 269,809.30

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Solution

The fourth proportional to 484,654.71, 668,835.22 and 269,809.30 is: 372,343.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,654.71 : 668,835.22 = 269,809.30 : x
  2. Step 2: Convert to fraction form
    484,654.71/668,835.22 = 269,809.30/x
  3. Step 3: Cross multiply
    484,654.71x = 668,835.22 × 269,809.30
  4. Step 4: Simplify right side
    484,654.71x = 180,457,959,179.37
  5. Step 5: Solve for x
    x = 180,457,959,179.37/484,654.71
  6. Step 6: Final answer
    x = 372,343.35

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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.