Home / 412,284.96-618,446.07-112,758.84

Finding the Fourth Proportional to 412,284.96, 618,446.07 and 112,758.84

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Solution

The fourth proportional to 412,284.96, 618,446.07 and 112,758.84 is: 169,143.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,284.96 : 618,446.07 = 112,758.84 : x
  2. Step 2: Convert to fraction form
    412,284.96/618,446.07 = 112,758.84/x
  3. Step 3: Cross multiply
    412,284.96x = 618,446.07 × 112,758.84
  4. Step 4: Simplify right side
    412,284.96x = 69,735,261,455.76
  5. Step 5: Solve for x
    x = 69,735,261,455.76/412,284.96
  6. Step 6: Final answer
    x = 169,143.36

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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.