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Finding the Fourth Proportional to 2,099,408.80, 2,947,570.40 and 2,099,408.80

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Solution

The fourth proportional to 2,099,408.80, 2,947,570.40 and 2,099,408.80 is: 2,947,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099,408.80 : 2,947,570.40 = 2,099,408.80 : x
  2. Step 2: Convert to fraction form
    2,099,408.80/2,947,570.40 = 2,099,408.80/x
  3. Step 3: Cross multiply
    2,099,408.80x = 2,947,570.40 × 2,099,408.80
  4. Step 4: Simplify right side
    2,099,408.80x = 6,188,155,236,379.52
  5. Step 5: Solve for x
    x = 6,188,155,236,379.52/2,099,408.80
  6. Step 6: Final answer
    x = 2,947,570.40

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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.