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Finding the Fourth Proportional to 484,318.16, 668,301 and 269,403.92

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Solution

The fourth proportional to 484,318.16, 668,301 and 269,403.92 is: 371,745.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,318.16 : 668,301 = 269,403.92 : x
  2. Step 2: Convert to fraction form
    484,318.16/668,301 = 269,403.92/x
  3. Step 3: Cross multiply
    484,318.16x = 668,301 × 269,403.92
  4. Step 4: Simplify right side
    484,318.16x = 180,042,909,139.92
  5. Step 5: Solve for x
    x = 180,042,909,139.92/484,318.16
  6. Step 6: Final answer
    x = 371,745.11

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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.