Home / 728,869.21-1,093,619.58-391,516.27

Finding the Fourth Proportional to 728,869.21, 1,093,619.58 and 391,516.27

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Solution

The fourth proportional to 728,869.21, 1,093,619.58 and 391,516.27 is: 587,444.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,869.21 : 1,093,619.58 = 391,516.27 : x
  2. Step 2: Convert to fraction form
    728,869.21/1,093,619.58 = 391,516.27/x
  3. Step 3: Cross multiply
    728,869.21x = 1,093,619.58 × 391,516.27
  4. Step 4: Simplify right side
    728,869.21x = 428,169,858,760.57
  5. Step 5: Solve for x
    x = 428,169,858,760.57/728,869.21
  6. Step 6: Final answer
    x = 587,444.02

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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.