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Finding the Fourth Proportional to 650,812.11, 976,425.53 and 518,205.39

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Solution

The fourth proportional to 650,812.11, 976,425.53 and 518,205.39 is: 777,473.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,812.11 : 976,425.53 = 518,205.39 : x
  2. Step 2: Convert to fraction form
    650,812.11/976,425.53 = 518,205.39/x
  3. Step 3: Cross multiply
    650,812.11x = 976,425.53 × 518,205.39
  4. Step 4: Simplify right side
    650,812.11x = 505,988,969,988.58
  5. Step 5: Solve for x
    x = 505,988,969,988.58/650,812.11
  6. Step 6: Final answer
    x = 777,473.19

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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.