Home / 286,982.76-430,476.30-99,993.96

Finding the Fourth Proportional to 286,982.76, 430,476.30 and 99,993.96

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Solution

The fourth proportional to 286,982.76, 430,476.30 and 99,993.96 is: 149,991.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,982.76 : 430,476.30 = 99,993.96 : x
  2. Step 2: Convert to fraction form
    286,982.76/430,476.30 = 99,993.96/x
  3. Step 3: Cross multiply
    286,982.76x = 430,476.30 × 99,993.96
  4. Step 4: Simplify right side
    286,982.76x = 43,045,029,923.15
  5. Step 5: Solve for x
    x = 43,045,029,923.15/286,982.76
  6. Step 6: Final answer
    x = 149,991.69

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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.