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Finding the Fourth Proportional to 989,568, 1,365,606.48 and 536,859

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Solution

The fourth proportional to 989,568, 1,365,606.48 and 536,859 is: 740,866.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,568 : 1,365,606.48 = 536,859 : x
  2. Step 2: Convert to fraction form
    989,568/1,365,606.48 = 536,859/x
  3. Step 3: Cross multiply
    989,568x = 1,365,606.48 × 536,859
  4. Step 4: Simplify right side
    989,568x = 733,138,129,246.32
  5. Step 5: Solve for x
    x = 733,138,129,246.32/989,568
  6. Step 6: Final answer
    x = 740,866.85

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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.