Home / 661,523.40-912,826.26-374,986.44

Finding the Fourth Proportional to 661,523.40, 912,826.26 and 374,986.44

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Solution

The fourth proportional to 661,523.40, 912,826.26 and 374,986.44 is: 517,438.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,523.40 : 912,826.26 = 374,986.44 : x
  2. Step 2: Convert to fraction form
    661,523.40/912,826.26 = 374,986.44/x
  3. Step 3: Cross multiply
    661,523.40x = 912,826.26 × 374,986.44
  4. Step 4: Simplify right side
    661,523.40x = 342,297,469,575.91
  5. Step 5: Solve for x
    x = 342,297,469,575.91/661,523.40
  6. Step 6: Final answer
    x = 517,438.19

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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.