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Finding the Fourth Proportional to 352,555.11, 486,523.35 and 191,406.96

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Solution

The fourth proportional to 352,555.11, 486,523.35 and 191,406.96 is: 264,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,555.11 : 486,523.35 = 191,406.96 : x
  2. Step 2: Convert to fraction form
    352,555.11/486,523.35 = 191,406.96/x
  3. Step 3: Cross multiply
    352,555.11x = 486,523.35 × 191,406.96
  4. Step 4: Simplify right side
    352,555.11x = 93,123,955,392.52
  5. Step 5: Solve for x
    x = 93,123,955,392.52/352,555.11
  6. Step 6: Final answer
    x = 264,140.14

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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.