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Finding the Fourth Proportional to 4,914,950.29, 7,372,419.08 and 1,320,717.29

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Solution

The fourth proportional to 4,914,950.29, 7,372,419.08 and 1,320,717.29 is: 1,981,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914,950.29 : 7,372,419.08 = 1,320,717.29 : x
  2. Step 2: Convert to fraction form
    4,914,950.29/7,372,419.08 = 1,320,717.29/x
  3. Step 3: Cross multiply
    4,914,950.29x = 7,372,419.08 × 1,320,717.29
  4. Step 4: Simplify right side
    4,914,950.29x = 9,736,881,341,478.31
  5. Step 5: Solve for x
    x = 9,736,881,341,478.31/4,914,950.29
  6. Step 6: Final answer
    x = 1,981,074.23

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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.