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Finding the Fourth Proportional to 557,834.95, 769,806.47 and 303,184.31

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Solution

The fourth proportional to 557,834.95, 769,806.47 and 303,184.31 is: 418,391.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,834.95 : 769,806.47 = 303,184.31 : x
  2. Step 2: Convert to fraction form
    557,834.95/769,806.47 = 303,184.31/x
  3. Step 3: Cross multiply
    557,834.95x = 769,806.47 × 303,184.31
  4. Step 4: Simplify right side
    557,834.95x = 233,393,241,924.56
  5. Step 5: Solve for x
    x = 233,393,241,924.56/557,834.95
  6. Step 6: Final answer
    x = 418,391.22

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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.