Home / 685,067.10-1,027,600.65-657,510.90

Finding the Fourth Proportional to 685,067.10, 1,027,600.65 and 657,510.90

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Solution

The fourth proportional to 685,067.10, 1,027,600.65 and 657,510.90 is: 986,266.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,067.10 : 1,027,600.65 = 657,510.90 : x
  2. Step 2: Convert to fraction form
    685,067.10/1,027,600.65 = 657,510.90/x
  3. Step 3: Cross multiply
    685,067.10x = 1,027,600.65 × 657,510.90
  4. Step 4: Simplify right side
    685,067.10x = 675,658,628,222.09
  5. Step 5: Solve for x
    x = 675,658,628,222.09/685,067.10
  6. Step 6: Final answer
    x = 986,266.35

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Double scale
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Similar ratio
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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.