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Finding the Fourth Proportional to 324,438.53, 486,657.68 and 236,253.21

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Solution

The fourth proportional to 324,438.53, 486,657.68 and 236,253.21 is: 354,379.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,438.53 : 486,657.68 = 236,253.21 : x
  2. Step 2: Convert to fraction form
    324,438.53/486,657.68 = 236,253.21/x
  3. Step 3: Cross multiply
    324,438.53x = 486,657.68 × 236,253.21
  4. Step 4: Simplify right side
    324,438.53x = 114,974,437,889.89
  5. Step 5: Solve for x
    x = 114,974,437,889.89/324,438.53
  6. Step 6: Final answer
    x = 354,379.73

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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.