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Finding the Fourth Proportional to 1,109,772.70, 1,664,659.05 and 1,109,772.70

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Solution

The fourth proportional to 1,109,772.70, 1,664,659.05 and 1,109,772.70 is: 1,664,659.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,772.70 : 1,664,659.05 = 1,109,772.70 : x
  2. Step 2: Convert to fraction form
    1,109,772.70/1,664,659.05 = 1,109,772.70/x
  3. Step 3: Cross multiply
    1,109,772.70x = 1,664,659.05 × 1,109,772.70
  4. Step 4: Simplify right side
    1,109,772.70x = 1,847,393,168,497.94
  5. Step 5: Solve for x
    x = 1,847,393,168,497.94/1,109,772.70
  6. Step 6: Final answer
    x = 1,664,659.05

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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.