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Finding the Fourth Proportional to 1,245,474.70, 1,865,259.60 and 1,245,474.70

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Solution

The fourth proportional to 1,245,474.70, 1,865,259.60 and 1,245,474.70 is: 1,865,259.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,474.70 : 1,865,259.60 = 1,245,474.70 : x
  2. Step 2: Convert to fraction form
    1,245,474.70/1,865,259.60 = 1,245,474.70/x
  3. Step 3: Cross multiply
    1,245,474.70x = 1,865,259.60 × 1,245,474.70
  4. Step 4: Simplify right side
    1,245,474.70x = 2,323,133,640,732.12
  5. Step 5: Solve for x
    x = 2,323,133,640,732.12/1,245,474.70
  6. Step 6: Final answer
    x = 1,865,259.60

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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.