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Finding the Fourth Proportional to 324,018.24, 485,858.88 and 146,440.32

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Solution

The fourth proportional to 324,018.24, 485,858.88 and 146,440.32 is: 219,584.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,018.24 : 485,858.88 = 146,440.32 : x
  2. Step 2: Convert to fraction form
    324,018.24/485,858.88 = 146,440.32/x
  3. Step 3: Cross multiply
    324,018.24x = 485,858.88 × 146,440.32
  4. Step 4: Simplify right side
    324,018.24x = 71,149,329,862.04
  5. Step 5: Solve for x
    x = 71,149,329,862.04/324,018.24
  6. Step 6: Final answer
    x = 219,584.34

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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.