Home / 306,286.08-459,404.28-193,637.76

Finding the Fourth Proportional to 306,286.08, 459,404.28 and 193,637.76

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Solution

The fourth proportional to 306,286.08, 459,404.28 and 193,637.76 is: 290,440.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,286.08 : 459,404.28 = 193,637.76 : x
  2. Step 2: Convert to fraction form
    306,286.08/459,404.28 = 193,637.76/x
  3. Step 3: Cross multiply
    306,286.08x = 459,404.28 × 193,637.76
  4. Step 4: Simplify right side
    306,286.08x = 88,958,015,713.61
  5. Step 5: Solve for x
    x = 88,958,015,713.61/306,286.08
  6. Step 6: Final answer
    x = 290,440.94

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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.