Home / 696,716.37-1,045,065.20-191,276.78

Finding the Fourth Proportional to 696,716.37, 1,045,065.20 and 191,276.78

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Solution

The fourth proportional to 696,716.37, 1,045,065.20 and 191,276.78 is: 286,912.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,716.37 : 1,045,065.20 = 191,276.78 : x
  2. Step 2: Convert to fraction form
    696,716.37/1,045,065.20 = 191,276.78/x
  3. Step 3: Cross multiply
    696,716.37x = 1,045,065.20 × 191,276.78
  4. Step 4: Simplify right side
    696,716.37x = 199,896,700,164.35
  5. Step 5: Solve for x
    x = 199,896,700,164.35/696,716.37
  6. Step 6: Final answer
    x = 286,912.59

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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.