Home / 691,311.36-1,036,962.16-192,675.36

Finding the Fourth Proportional to 691,311.36, 1,036,962.16 and 192,675.36

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Solution

The fourth proportional to 691,311.36, 1,036,962.16 and 192,675.36 is: 289,011.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,311.36 : 1,036,962.16 = 192,675.36 : x
  2. Step 2: Convert to fraction form
    691,311.36/1,036,962.16 = 192,675.36/x
  3. Step 3: Cross multiply
    691,311.36x = 1,036,962.16 × 192,675.36
  4. Step 4: Simplify right side
    691,311.36x = 199,797,057,484.38
  5. Step 5: Solve for x
    x = 199,797,057,484.38/691,311.36
  6. Step 6: Final answer
    x = 289,011.68

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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.