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Finding the Fourth Proportional to 572,363.82, 789,944.25 and 342,930.21

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Solution

The fourth proportional to 572,363.82, 789,944.25 and 342,930.21 is: 473,292.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,363.82 : 789,944.25 = 342,930.21 : x
  2. Step 2: Convert to fraction form
    572,363.82/789,944.25 = 342,930.21/x
  3. Step 3: Cross multiply
    572,363.82x = 789,944.25 × 342,930.21
  4. Step 4: Simplify right side
    572,363.82x = 270,895,743,935.51
  5. Step 5: Solve for x
    x = 270,895,743,935.51/572,363.82
  6. Step 6: Final answer
    x = 473,292.92

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1.5x scale

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.