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Finding the Fourth Proportional to 1,738,664.76, 2,399,472.54 and 974,767.80

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Solution

The fourth proportional to 1,738,664.76, 2,399,472.54 and 974,767.80 is: 1,345,244.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738,664.76 : 2,399,472.54 = 974,767.80 : x
  2. Step 2: Convert to fraction form
    1,738,664.76/2,399,472.54 = 974,767.80/x
  3. Step 3: Cross multiply
    1,738,664.76x = 2,399,472.54 × 974,767.80
  4. Step 4: Simplify right side
    1,738,664.76x = 2,338,928,568,976.21
  5. Step 5: Solve for x
    x = 2,338,928,568,976.21/1,738,664.76
  6. Step 6: Final answer
    x = 1,345,244.13

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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.