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Finding the Fourth Proportional to 618,782.31, 928,174.26 and 169,507.13

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Solution

The fourth proportional to 618,782.31, 928,174.26 and 169,507.13 is: 254,260.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,782.31 : 928,174.26 = 169,507.13 : x
  2. Step 2: Convert to fraction form
    618,782.31/928,174.26 = 169,507.13/x
  3. Step 3: Cross multiply
    618,782.31x = 928,174.26 × 169,507.13
  4. Step 4: Simplify right side
    618,782.31x = 157,332,150,947.25
  5. Step 5: Solve for x
    x = 157,332,150,947.25/618,782.31
  6. Step 6: Final answer
    x = 254,260.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.