Home / 861,728.51-1,189,248.57-616,736.27

Finding the Fourth Proportional to 861,728.51, 1,189,248.57 and 616,736.27

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Solution

The fourth proportional to 861,728.51, 1,189,248.57 and 616,736.27 is: 851,141.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,728.51 : 1,189,248.57 = 616,736.27 : x
  2. Step 2: Convert to fraction form
    861,728.51/1,189,248.57 = 616,736.27/x
  3. Step 3: Cross multiply
    861,728.51x = 1,189,248.57 × 616,736.27
  4. Step 4: Simplify right side
    861,728.51x = 733,452,730,137.76
  5. Step 5: Solve for x
    x = 733,452,730,137.76/861,728.51
  6. Step 6: Final answer
    x = 851,141.30

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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.