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Finding the Fourth Proportional to 741,645.60, 1,040,665.80 and 741,645.60

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Solution

The fourth proportional to 741,645.60, 1,040,665.80 and 741,645.60 is: 1,040,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,645.60 : 1,040,665.80 = 741,645.60 : x
  2. Step 2: Convert to fraction form
    741,645.60/1,040,665.80 = 741,645.60/x
  3. Step 3: Cross multiply
    741,645.60x = 1,040,665.80 × 741,645.60
  4. Step 4: Simplify right side
    741,645.60x = 771,805,211,640.48
  5. Step 5: Solve for x
    x = 771,805,211,640.48/741,645.60
  6. Step 6: Final answer
    x = 1,040,665.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.