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Finding the Fourth Proportional to 352,763.20, 486,814.14 and 191,616.94

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Solution

The fourth proportional to 352,763.20, 486,814.14 and 191,616.94 is: 264,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,763.20 : 486,814.14 = 191,616.94 : x
  2. Step 2: Convert to fraction form
    352,763.20/486,814.14 = 191,616.94/x
  3. Step 3: Cross multiply
    352,763.20x = 486,814.14 × 191,616.94
  4. Step 4: Simplify right side
    352,763.20x = 93,281,832,463.38
  5. Step 5: Solve for x
    x = 93,281,832,463.38/352,763.20
  6. Step 6: Final answer
    x = 264,431.87

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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.