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Finding the Fourth Proportional to 274,370.16, 378,645.54 and 153,504.24

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Solution

The fourth proportional to 274,370.16, 378,645.54 and 153,504.24 is: 211,844.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,370.16 : 378,645.54 = 153,504.24 : x
  2. Step 2: Convert to fraction form
    274,370.16/378,645.54 = 153,504.24/x
  3. Step 3: Cross multiply
    274,370.16x = 378,645.54 × 153,504.24
  4. Step 4: Simplify right side
    274,370.16x = 58,123,695,847.09
  5. Step 5: Solve for x
    x = 58,123,695,847.09/274,370.16
  6. Step 6: Final answer
    x = 211,844.09

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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.