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Finding the Fourth Proportional to 324,430.72, 486,657.76 and 122,008.27

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Solution

The fourth proportional to 324,430.72, 486,657.76 and 122,008.27 is: 183,016.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,430.72 : 486,657.76 = 122,008.27 : x
  2. Step 2: Convert to fraction form
    324,430.72/486,657.76 = 122,008.27/x
  3. Step 3: Cross multiply
    324,430.72x = 486,657.76 × 122,008.27
  4. Step 4: Simplify right side
    324,430.72x = 59,376,269,973.68
  5. Step 5: Solve for x
    x = 59,376,269,973.68/324,430.72
  6. Step 6: Final answer
    x = 183,016.79

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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.