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Finding the Fourth Proportional to 886,337.76, 1,223,103.60 and 504,328.80

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Solution

The fourth proportional to 886,337.76, 1,223,103.60 and 504,328.80 is: 695,949.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,337.76 : 1,223,103.60 = 504,328.80 : x
  2. Step 2: Convert to fraction form
    886,337.76/1,223,103.60 = 504,328.80/x
  3. Step 3: Cross multiply
    886,337.76x = 1,223,103.60 × 504,328.80
  4. Step 4: Simplify right side
    886,337.76x = 616,846,370,863.68
  5. Step 5: Solve for x
    x = 616,846,370,863.68/886,337.76
  6. Step 6: Final answer
    x = 695,949.56

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Double scale
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Similar ratio
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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.