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Finding the Fourth Proportional to 1,247,908.23, 1,721,965.16 and 704,012.27

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Solution

The fourth proportional to 1,247,908.23, 1,721,965.16 and 704,012.27 is: 971,453.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,908.23 : 1,721,965.16 = 704,012.27 : x
  2. Step 2: Convert to fraction form
    1,247,908.23/1,721,965.16 = 704,012.27/x
  3. Step 3: Cross multiply
    1,247,908.23x = 1,721,965.16 × 704,012.27
  4. Step 4: Simplify right side
    1,247,908.23x = 1,212,284,594,302.72
  5. Step 5: Solve for x
    x = 1,212,284,594,302.72/1,247,908.23
  6. Step 6: Final answer
    x = 971,453.32

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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.