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Finding the Fourth Proportional to 572,066.88, 789,364.62 and 342,570.42

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Solution

The fourth proportional to 572,066.88, 789,364.62 and 342,570.42 is: 472,694.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,066.88 : 789,364.62 = 342,570.42 : x
  2. Step 2: Convert to fraction form
    572,066.88/789,364.62 = 342,570.42/x
  3. Step 3: Cross multiply
    572,066.88x = 789,364.62 × 342,570.42
  4. Step 4: Simplify right side
    572,066.88x = 270,412,969,406.54
  5. Step 5: Solve for x
    x = 270,412,969,406.54/572,066.88
  6. Step 6: Final answer
    x = 472,694.68

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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.