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Finding the Fourth Proportional to 572,062.93, 789,419.63 and 313,934.05

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Solution

The fourth proportional to 572,062.93, 789,419.63 and 313,934.05 is: 433,214.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,062.93 : 789,419.63 = 313,934.05 : x
  2. Step 2: Convert to fraction form
    572,062.93/789,419.63 = 313,934.05/x
  3. Step 3: Cross multiply
    572,062.93x = 789,419.63 × 313,934.05
  4. Step 4: Simplify right side
    572,062.93x = 247,825,706,028.73
  5. Step 5: Solve for x
    x = 247,825,706,028.73/572,062.93
  6. Step 6: Final answer
    x = 433,214.06

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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.