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Finding the Fourth Proportional to 874,471.92, 1,311,708.12 and 675,083.40

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Solution

The fourth proportional to 874,471.92, 1,311,708.12 and 675,083.40 is: 1,012,625.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,471.92 : 1,311,708.12 = 675,083.40 : x
  2. Step 2: Convert to fraction form
    874,471.92/1,311,708.12 = 675,083.40/x
  3. Step 3: Cross multiply
    874,471.92x = 1,311,708.12 × 675,083.40
  4. Step 4: Simplify right side
    874,471.92x = 885,512,377,457.21
  5. Step 5: Solve for x
    x = 885,512,377,457.21/874,471.92
  6. Step 6: Final answer
    x = 1,012,625.29

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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.