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Finding the Fourth Proportional to 352,836.32, 486,911.51 and 191,692.69

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Solution

The fourth proportional to 352,836.32, 486,911.51 and 191,692.69 is: 264,534.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,836.32 : 486,911.51 = 191,692.69 : x
  2. Step 2: Convert to fraction form
    352,836.32/486,911.51 = 191,692.69/x
  3. Step 3: Cross multiply
    352,836.32x = 486,911.51 × 191,692.69
  4. Step 4: Simplify right side
    352,836.32x = 93,337,377,143.86
  5. Step 5: Solve for x
    x = 93,337,377,143.86/352,836.32
  6. Step 6: Final answer
    x = 264,534.49

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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.