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Finding the Fourth Proportional to 484,489.80, 668,590.72 and 269,626.24

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Solution

The fourth proportional to 484,489.80, 668,590.72 and 269,626.24 is: 372,081.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,489.80 : 668,590.72 = 269,626.24 : x
  2. Step 2: Convert to fraction form
    484,489.80/668,590.72 = 269,626.24/x
  3. Step 3: Cross multiply
    484,489.80x = 668,590.72 × 269,626.24
  4. Step 4: Simplify right side
    484,489.80x = 180,269,601,932.49
  5. Step 5: Solve for x
    x = 180,269,601,932.49/484,489.80
  6. Step 6: Final answer
    x = 372,081.32

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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.