Home / 691,323.70-1,036,985.55-192,687.70

Finding the Fourth Proportional to 691,323.70, 1,036,985.55 and 192,687.70

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Solution

The fourth proportional to 691,323.70, 1,036,985.55 and 192,687.70 is: 289,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,323.70 : 1,036,985.55 = 192,687.70 : x
  2. Step 2: Convert to fraction form
    691,323.70/1,036,985.55 = 192,687.70/x
  3. Step 3: Cross multiply
    691,323.70x = 1,036,985.55 × 192,687.70
  4. Step 4: Simplify right side
    691,323.70x = 199,814,360,562.74
  5. Step 5: Solve for x
    x = 199,814,360,562.74/691,323.70
  6. Step 6: Final answer
    x = 289,031.55

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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.