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Finding the Fourth Proportional to 6,380,945.08, 8,805,809.16 and 3,480,335.92

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Solution

The fourth proportional to 6,380,945.08, 8,805,809.16 and 3,480,335.92 is: 4,802,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,380,945.08 : 8,805,809.16 = 3,480,335.92 : x
  2. Step 2: Convert to fraction form
    6,380,945.08/8,805,809.16 = 3,480,335.92/x
  3. Step 3: Cross multiply
    6,380,945.08x = 8,805,809.16 × 3,480,335.92
  4. Step 4: Simplify right side
    6,380,945.08x = 30,647,173,924,213.03
  5. Step 5: Solve for x
    x = 30,647,173,924,213.03/6,380,945.08
  6. Step 6: Final answer
    x = 4,802,920.81

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Double scale
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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.