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Finding the Fourth Proportional to 1,226,647.23, 1,839,865.45 and 746,750.48

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Solution

The fourth proportional to 1,226,647.23, 1,839,865.45 and 746,750.48 is: 1,120,061.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,647.23 : 1,839,865.45 = 746,750.48 : x
  2. Step 2: Convert to fraction form
    1,226,647.23/1,839,865.45 = 746,750.48/x
  3. Step 3: Cross multiply
    1,226,647.23x = 1,839,865.45 × 746,750.48
  4. Step 4: Simplify right side
    1,226,647.23x = 1,373,920,404,189.16
  5. Step 5: Solve for x
    x = 1,373,920,404,189.16/1,226,647.23
  6. Step 6: Final answer
    x = 1,120,061.55

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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.