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Finding the Fourth Proportional to 324,616.30, 486,924.45 and 319,950.70

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Solution

The fourth proportional to 324,616.30, 486,924.45 and 319,950.70 is: 479,926.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,616.30 : 486,924.45 = 319,950.70 : x
  2. Step 2: Convert to fraction form
    324,616.30/486,924.45 = 319,950.70/x
  3. Step 3: Cross multiply
    324,616.30x = 486,924.45 × 319,950.70
  4. Step 4: Simplify right side
    324,616.30x = 155,791,818,624.62
  5. Step 5: Solve for x
    x = 155,791,818,624.62/324,616.30
  6. Step 6: Final answer
    x = 479,926.05

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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.