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Finding the Fourth Proportional to 1,658,712.56, 2,485,964.91 and 746,922.19

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Solution

The fourth proportional to 1,658,712.56, 2,485,964.91 and 746,922.19 is: 1,119,435.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658,712.56 : 2,485,964.91 = 746,922.19 : x
  2. Step 2: Convert to fraction form
    1,658,712.56/2,485,964.91 = 746,922.19/x
  3. Step 3: Cross multiply
    1,658,712.56x = 2,485,964.91 × 746,922.19
  4. Step 4: Simplify right side
    1,658,712.56x = 1,856,822,351,426.40
  5. Step 5: Solve for x
    x = 1,856,822,351,426.40/1,658,712.56
  6. Step 6: Final answer
    x = 1,119,435.88

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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.