Home / 691,448.40-1,037,170.80-192,812.40

Finding the Fourth Proportional to 691,448.40, 1,037,170.80 and 192,812.40

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Solution

The fourth proportional to 691,448.40, 1,037,170.80 and 192,812.40 is: 289,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,448.40 : 1,037,170.80 = 192,812.40 : x
  2. Step 2: Convert to fraction form
    691,448.40/1,037,170.80 = 192,812.40/x
  3. Step 3: Cross multiply
    691,448.40x = 1,037,170.80 × 192,812.40
  4. Step 4: Simplify right side
    691,448.40x = 199,979,391,157.92
  5. Step 5: Solve for x
    x = 199,979,391,157.92/691,448.40
  6. Step 6: Final answer
    x = 289,218.10

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Similar ratio
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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.