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Finding the Fourth Proportional to 1,319,625, 1,821,092.22 and 716,013

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Solution

The fourth proportional to 1,319,625, 1,821,092.22 and 716,013 is: 988,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,625 : 1,821,092.22 = 716,013 : x
  2. Step 2: Convert to fraction form
    1,319,625/1,821,092.22 = 716,013/x
  3. Step 3: Cross multiply
    1,319,625x = 1,821,092.22 × 716,013
  4. Step 4: Simplify right side
    1,319,625x = 1,303,925,703,718.86
  5. Step 5: Solve for x
    x = 1,303,925,703,718.86/1,319,625
  6. Step 6: Final answer
    x = 988,103.21

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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.