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Finding the Fourth Proportional to 484,321.16, 668,305.14 and 269,406.92

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Solution

The fourth proportional to 484,321.16, 668,305.14 and 269,406.92 is: 371,749.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,321.16 : 668,305.14 = 269,406.92 : x
  2. Step 2: Convert to fraction form
    484,321.16/668,305.14 = 269,406.92/x
  3. Step 3: Cross multiply
    484,321.16x = 668,305.14 × 269,406.92
  4. Step 4: Simplify right side
    484,321.16x = 180,046,029,387.57
  5. Step 5: Solve for x
    x = 180,046,029,387.57/484,321.16
  6. Step 6: Final answer
    x = 371,749.25

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1.5x scale

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.