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Finding the Fourth Proportional to 611,863.26, 844,366.23 and 343,585.50

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Solution

The fourth proportional to 611,863.26, 844,366.23 and 343,585.50 is: 474,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,863.26 : 844,366.23 = 343,585.50 : x
  2. Step 2: Convert to fraction form
    611,863.26/844,366.23 = 343,585.50/x
  3. Step 3: Cross multiply
    611,863.26x = 844,366.23 × 343,585.50
  4. Step 4: Simplify right side
    611,863.26x = 290,111,993,317.67
  5. Step 5: Solve for x
    x = 290,111,993,317.67/611,863.26
  6. Step 6: Final answer
    x = 474,145.14

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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.