Home / 886,656.40-1,329,984.60-512,486.80

Finding the Fourth Proportional to 886,656.40, 1,329,984.60 and 512,486.80

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Solution

The fourth proportional to 886,656.40, 1,329,984.60 and 512,486.80 is: 768,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,656.40 : 1,329,984.60 = 512,486.80 : x
  2. Step 2: Convert to fraction form
    886,656.40/1,329,984.60 = 512,486.80/x
  3. Step 3: Cross multiply
    886,656.40x = 1,329,984.60 × 512,486.80
  4. Step 4: Simplify right side
    886,656.40x = 681,599,551,703.28
  5. Step 5: Solve for x
    x = 681,599,551,703.28/886,656.40
  6. Step 6: Final answer
    x = 768,730.20

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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.