Home / 856,144.72-1,284,229.72-406,911.44

Finding the Fourth Proportional to 856,144.72, 1,284,229.72 and 406,911.44

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Solution

The fourth proportional to 856,144.72, 1,284,229.72 and 406,911.44 is: 610,373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,144.72 : 1,284,229.72 = 406,911.44 : x
  2. Step 2: Convert to fraction form
    856,144.72/1,284,229.72 = 406,911.44/x
  3. Step 3: Cross multiply
    856,144.72x = 1,284,229.72 × 406,911.44
  4. Step 4: Simplify right side
    856,144.72x = 522,567,764,656.00
  5. Step 5: Solve for x
    x = 522,567,764,656.00/856,144.72
  6. Step 6: Final answer
    x = 610,373.17

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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.