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Finding the Fourth Proportional to 1,786,870.54, 2,465,940.72 and 1,051,691.56

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Solution

The fourth proportional to 1,786,870.54, 2,465,940.72 and 1,051,691.56 is: 1,451,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,870.54 : 2,465,940.72 = 1,051,691.56 : x
  2. Step 2: Convert to fraction form
    1,786,870.54/2,465,940.72 = 1,051,691.56/x
  3. Step 3: Cross multiply
    1,786,870.54x = 2,465,940.72 × 1,051,691.56
  4. Step 4: Simplify right side
    1,786,870.54x = 2,593,409,042,684.32
  5. Step 5: Solve for x
    x = 2,593,409,042,684.32/1,786,870.54
  6. Step 6: Final answer
    x = 1,451,369.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.