Home / 691,439.75-1,037,334.59-192,803.75

Finding the Fourth Proportional to 691,439.75, 1,037,334.59 and 192,803.75

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Solution

The fourth proportional to 691,439.75, 1,037,334.59 and 192,803.75 is: 289,254.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,439.75 : 1,037,334.59 = 192,803.75 : x
  2. Step 2: Convert to fraction form
    691,439.75/1,037,334.59 = 192,803.75/x
  3. Step 3: Cross multiply
    691,439.75x = 1,037,334.59 × 192,803.75
  4. Step 4: Simplify right side
    691,439.75x = 200,001,998,956.71
  5. Step 5: Solve for x
    x = 200,001,998,956.71/691,439.75
  6. Step 6: Final answer
    x = 289,254.41

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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.