Home / 721,629.04-995,190.16-619,622.56

Finding the Fourth Proportional to 721,629.04, 995,190.16 and 619,622.56

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Solution

The fourth proportional to 721,629.04, 995,190.16 and 619,622.56 is: 854,514.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,629.04 : 995,190.16 = 619,622.56 : x
  2. Step 2: Convert to fraction form
    721,629.04/995,190.16 = 619,622.56/x
  3. Step 3: Cross multiply
    721,629.04x = 995,190.16 × 619,622.56
  4. Step 4: Simplify right side
    721,629.04x = 616,642,274,626.01
  5. Step 5: Solve for x
    x = 616,642,274,626.01/721,629.04
  6. Step 6: Final answer
    x = 854,514.22

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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.