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Finding the Fourth Proportional to 572,366.82, 789,948.39 and 342,933.21

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Solution

The fourth proportional to 572,366.82, 789,948.39 and 342,933.21 is: 473,297.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,366.82 : 789,948.39 = 342,933.21 : x
  2. Step 2: Convert to fraction form
    572,366.82/789,948.39 = 342,933.21/x
  3. Step 3: Cross multiply
    572,366.82x = 789,948.39 × 342,933.21
  4. Step 4: Simplify right side
    572,366.82x = 270,899,537,117.03
  5. Step 5: Solve for x
    x = 270,899,537,117.03/572,366.82
  6. Step 6: Final answer
    x = 473,297.07

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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.