Home / 861,317.50-1,188,606.54-479,344.18

Finding the Fourth Proportional to 861,317.50, 1,188,606.54 and 479,344.18

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Solution

The fourth proportional to 861,317.50, 1,188,606.54 and 479,344.18 is: 661,488.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,317.50 : 1,188,606.54 = 479,344.18 : x
  2. Step 2: Convert to fraction form
    861,317.50/1,188,606.54 = 479,344.18/x
  3. Step 3: Cross multiply
    861,317.50x = 1,188,606.54 × 479,344.18
  4. Step 4: Simplify right side
    861,317.50x = 569,751,627,258.94
  5. Step 5: Solve for x
    x = 569,751,627,258.94/861,317.50
  6. Step 6: Final answer
    x = 661,488.51

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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.