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Finding the Fourth Proportional to 1,211,600.10, 1,813,463.55 and 1,211,600.10

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Solution

The fourth proportional to 1,211,600.10, 1,813,463.55 and 1,211,600.10 is: 1,813,463.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,600.10 : 1,813,463.55 = 1,211,600.10 : x
  2. Step 2: Convert to fraction form
    1,211,600.10/1,813,463.55 = 1,211,600.10/x
  3. Step 3: Cross multiply
    1,211,600.10x = 1,813,463.55 × 1,211,600.10
  4. Step 4: Simplify right side
    1,211,600.10x = 2,197,192,618,526.36
  5. Step 5: Solve for x
    x = 2,197,192,618,526.36/1,211,600.10
  6. Step 6: Final answer
    x = 1,813,463.55

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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.