Home / 815,725.80-1,223,588.70-514,575.90

Finding the Fourth Proportional to 815,725.80, 1,223,588.70 and 514,575.90

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Solution

The fourth proportional to 815,725.80, 1,223,588.70 and 514,575.90 is: 771,863.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,725.80 : 1,223,588.70 = 514,575.90 : x
  2. Step 2: Convert to fraction form
    815,725.80/1,223,588.70 = 514,575.90/x
  3. Step 3: Cross multiply
    815,725.80x = 1,223,588.70 × 514,575.90
  4. Step 4: Simplify right side
    815,725.80x = 629,629,256,532.33
  5. Step 5: Solve for x
    x = 629,629,256,532.33/815,725.80
  6. Step 6: Final answer
    x = 771,863.85

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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.