Home / 808,936.40-1,213,404.60-798,438.80

Finding the Fourth Proportional to 808,936.40, 1,213,404.60 and 798,438.80

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Solution

The fourth proportional to 808,936.40, 1,213,404.60 and 798,438.80 is: 1,197,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,936.40 : 1,213,404.60 = 798,438.80 : x
  2. Step 2: Convert to fraction form
    808,936.40/1,213,404.60 = 798,438.80/x
  3. Step 3: Cross multiply
    808,936.40x = 1,213,404.60 × 798,438.80
  4. Step 4: Simplify right side
    808,936.40x = 968,829,312,738.48
  5. Step 5: Solve for x
    x = 968,829,312,738.48/808,936.40
  6. Step 6: Final answer
    x = 1,197,658.20

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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.