Home / 886,805.20-1,328,748.60-512,174.80

Finding the Fourth Proportional to 886,805.20, 1,328,748.60 and 512,174.80

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Solution

The fourth proportional to 886,805.20, 1,328,748.60 and 512,174.80 is: 767,419.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,805.20 : 1,328,748.60 = 512,174.80 : x
  2. Step 2: Convert to fraction form
    886,805.20/1,328,748.60 = 512,174.80/x
  3. Step 3: Cross multiply
    886,805.20x = 1,328,748.60 × 512,174.80
  4. Step 4: Simplify right side
    886,805.20x = 680,551,548,455.28
  5. Step 5: Solve for x
    x = 680,551,548,455.28/886,805.20
  6. Step 6: Final answer
    x = 767,419.44

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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.