Home / 718,168.22-991,022.60-403,887.06

Finding the Fourth Proportional to 718,168.22, 991,022.60 and 403,887.06

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Solution

The fourth proportional to 718,168.22, 991,022.60 and 403,887.06 is: 557,336.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,168.22 : 991,022.60 = 403,887.06 : x
  2. Step 2: Convert to fraction form
    718,168.22/991,022.60 = 403,887.06/x
  3. Step 3: Cross multiply
    718,168.22x = 991,022.60 × 403,887.06
  4. Step 4: Simplify right side
    718,168.22x = 400,261,204,307.56
  5. Step 5: Solve for x
    x = 400,261,204,307.56/718,168.22
  6. Step 6: Final answer
    x = 557,336.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.