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Finding the Fourth Proportional to 484,308.72, 668,346.38 and 269,448.93

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Solution

The fourth proportional to 484,308.72, 668,346.38 and 269,448.93 is: 371,839.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,308.72 : 668,346.38 = 269,448.93 : x
  2. Step 2: Convert to fraction form
    484,308.72/668,346.38 = 269,448.93/x
  3. Step 3: Cross multiply
    484,308.72x = 668,346.38 × 269,448.93
  4. Step 4: Simplify right side
    484,308.72x = 180,085,215,613.13
  5. Step 5: Solve for x
    x = 180,085,215,613.13/484,308.72
  6. Step 6: Final answer
    x = 371,839.71

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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.