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Finding the Fourth Proportional to 4,455,138.70, 6,682,708.05 and 4,455,138.70

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Solution

The fourth proportional to 4,455,138.70, 6,682,708.05 and 4,455,138.70 is: 6,682,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,455,138.70 : 6,682,708.05 = 4,455,138.70 : x
  2. Step 2: Convert to fraction form
    4,455,138.70/6,682,708.05 = 4,455,138.70/x
  3. Step 3: Cross multiply
    4,455,138.70x = 6,682,708.05 × 4,455,138.70
  4. Step 4: Simplify right side
    4,455,138.70x = 29,772,391,254,356.54
  5. Step 5: Solve for x
    x = 29,772,391,254,356.54/4,455,138.70
  6. Step 6: Final answer
    x = 6,682,708.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.