Home / 286,382.96-394,944.39-194,639.66

Finding the Fourth Proportional to 286,382.96, 394,944.39 and 194,639.66

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Solution

The fourth proportional to 286,382.96, 394,944.39 and 194,639.66 is: 268,423.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,382.96 : 394,944.39 = 194,639.66 : x
  2. Step 2: Convert to fraction form
    286,382.96/394,944.39 = 194,639.66/x
  3. Step 3: Cross multiply
    286,382.96x = 394,944.39 × 194,639.66
  4. Step 4: Simplify right side
    286,382.96x = 76,871,841,788.51
  5. Step 5: Solve for x
    x = 76,871,841,788.51/286,382.96
  6. Step 6: Final answer
    x = 268,423.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.