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Finding the Fourth Proportional to 1,187,568, 1,638,843.84 and 651,024

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Solution

The fourth proportional to 1,187,568, 1,638,843.84 and 651,024 is: 898,413.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,568 : 1,638,843.84 = 651,024 : x
  2. Step 2: Convert to fraction form
    1,187,568/1,638,843.84 = 651,024/x
  3. Step 3: Cross multiply
    1,187,568x = 1,638,843.84 × 651,024
  4. Step 4: Simplify right side
    1,187,568x = 1,066,926,672,092.16
  5. Step 5: Solve for x
    x = 1,066,926,672,092.16/1,187,568
  6. Step 6: Final answer
    x = 898,413.12

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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.