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Finding the Fourth Proportional to 324,658.60, 486,987.90 and 114,317.80

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Solution

The fourth proportional to 324,658.60, 486,987.90 and 114,317.80 is: 171,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,658.60 : 486,987.90 = 114,317.80 : x
  2. Step 2: Convert to fraction form
    324,658.60/486,987.90 = 114,317.80/x
  3. Step 3: Cross multiply
    324,658.60x = 486,987.90 × 114,317.80
  4. Step 4: Simplify right side
    324,658.60x = 55,671,385,354.62
  5. Step 5: Solve for x
    x = 55,671,385,354.62/324,658.60
  6. Step 6: Final answer
    x = 171,476.70

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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.