Home / 856,764.63-1,283,744.97-518,781.60

Finding the Fourth Proportional to 856,764.63, 1,283,744.97 and 518,781.60

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Solution

The fourth proportional to 856,764.63, 1,283,744.97 and 518,781.60 is: 777,323.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,764.63 : 1,283,744.97 = 518,781.60 : x
  2. Step 2: Convert to fraction form
    856,764.63/1,283,744.97 = 518,781.60/x
  3. Step 3: Cross multiply
    856,764.63x = 1,283,744.97 × 518,781.60
  4. Step 4: Simplify right side
    856,764.63x = 665,983,269,528.55
  5. Step 5: Solve for x
    x = 665,983,269,528.55/856,764.63
  6. Step 6: Final answer
    x = 777,323.49

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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.