Home / 681,331.80-1,021,997.70-605,224.20

Finding the Fourth Proportional to 681,331.80, 1,021,997.70 and 605,224.20

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Solution

The fourth proportional to 681,331.80, 1,021,997.70 and 605,224.20 is: 907,836.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,331.80 : 1,021,997.70 = 605,224.20 : x
  2. Step 2: Convert to fraction form
    681,331.80/1,021,997.70 = 605,224.20/x
  3. Step 3: Cross multiply
    681,331.80x = 1,021,997.70 × 605,224.20
  4. Step 4: Simplify right side
    681,331.80x = 618,537,740,384.34
  5. Step 5: Solve for x
    x = 618,537,740,384.34/681,331.80
  6. Step 6: Final answer
    x = 907,836.30

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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.