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Finding the Fourth Proportional to 3,670,201.70, 5,148,911.20 and 3,670,201.70

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Solution

The fourth proportional to 3,670,201.70, 5,148,911.20 and 3,670,201.70 is: 5,148,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670,201.70 : 5,148,911.20 = 3,670,201.70 : x
  2. Step 2: Convert to fraction form
    3,670,201.70/5,148,911.20 = 3,670,201.70/x
  3. Step 3: Cross multiply
    3,670,201.70x = 5,148,911.20 × 3,670,201.70
  4. Step 4: Simplify right side
    3,670,201.70x = 18,897,542,639,389.04
  5. Step 5: Solve for x
    x = 18,897,542,639,389.04/3,670,201.70
  6. Step 6: Final answer
    x = 5,148,911.20

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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.