Home / 306,440,400.80-459,660,601.20-191,778,615.20

Finding the Fourth Proportional to 306,440,400.80, 459,660,601.20 and 191,778,615.20

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Solution

The fourth proportional to 306,440,400.80, 459,660,601.20 and 191,778,615.20 is: 287,667,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,440,400.80 : 459,660,601.20 = 191,778,615.20 : x
  2. Step 2: Convert to fraction form
    306,440,400.80/459,660,601.20 = 191,778,615.20/x
  3. Step 3: Cross multiply
    306,440,400.80x = 459,660,601.20 × 191,778,615.20
  4. Step 4: Simplify right side
    306,440,400.80x = 88,153,073,560,135,456
  5. Step 5: Solve for x
    x = 88,153,073,560,135,456/306,440,400.80
  6. Step 6: Final answer
    x = 287,667,922.80

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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.