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Finding the Fourth Proportional to 3,115,588.80, 4,373,620.80 and 3,115,588.80

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Solution

The fourth proportional to 3,115,588.80, 4,373,620.80 and 3,115,588.80 is: 4,373,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,588.80 : 4,373,620.80 = 3,115,588.80 : x
  2. Step 2: Convert to fraction form
    3,115,588.80/4,373,620.80 = 3,115,588.80/x
  3. Step 3: Cross multiply
    3,115,588.80x = 4,373,620.80 × 3,115,588.80
  4. Step 4: Simplify right side
    3,115,588.80x = 13,626,403,979,927.04
  5. Step 5: Solve for x
    x = 13,626,403,979,927.04/3,115,588.80
  6. Step 6: Final answer
    x = 4,373,620.80

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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.