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Finding the Fourth Proportional to 726,648.88, 1,088,397.96 and 351,886

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Solution

The fourth proportional to 726,648.88, 1,088,397.96 and 351,886 is: 527,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,648.88 : 1,088,397.96 = 351,886 : x
  2. Step 2: Convert to fraction form
    726,648.88/1,088,397.96 = 351,886/x
  3. Step 3: Cross multiply
    726,648.88x = 1,088,397.96 × 351,886
  4. Step 4: Simplify right side
    726,648.88x = 382,992,004,552.56
  5. Step 5: Solve for x
    x = 382,992,004,552.56/726,648.88
  6. Step 6: Final answer
    x = 527,066.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.