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Finding the Fourth Proportional to 472,523.80, 708,785.70 and 269,911.93

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Solution

The fourth proportional to 472,523.80, 708,785.70 and 269,911.93 is: 404,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,523.80 : 708,785.70 = 269,911.93 : x
  2. Step 2: Convert to fraction form
    472,523.80/708,785.70 = 269,911.93/x
  3. Step 3: Cross multiply
    472,523.80x = 708,785.70 × 269,911.93
  4. Step 4: Simplify right side
    472,523.80x = 191,309,716,243.40
  5. Step 5: Solve for x
    x = 191,309,716,243.40/472,523.80
  6. Step 6: Final answer
    x = 404,867.90

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.