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Finding the Fourth Proportional to 1,093,278.72, 1,508,736 and 609,888

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Solution

The fourth proportional to 1,093,278.72, 1,508,736 and 609,888 is: 841,651.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,278.72 : 1,508,736 = 609,888 : x
  2. Step 2: Convert to fraction form
    1,093,278.72/1,508,736 = 609,888/x
  3. Step 3: Cross multiply
    1,093,278.72x = 1,508,736 × 609,888
  4. Step 4: Simplify right side
    1,093,278.72x = 920,159,981,568
  5. Step 5: Solve for x
    x = 920,159,981,568/1,093,278.72
  6. Step 6: Final answer
    x = 841,651.78

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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.