Home / 2,618,839.40-3,928,259.10-935,997.80

Finding the Fourth Proportional to 2,618,839.40, 3,928,259.10 and 935,997.80

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Solution

The fourth proportional to 2,618,839.40, 3,928,259.10 and 935,997.80 is: 1,403,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,839.40 : 3,928,259.10 = 935,997.80 : x
  2. Step 2: Convert to fraction form
    2,618,839.40/3,928,259.10 = 935,997.80/x
  3. Step 3: Cross multiply
    2,618,839.40x = 3,928,259.10 × 935,997.80
  4. Step 4: Simplify right side
    2,618,839.40x = 3,676,841,875,429.98
  5. Step 5: Solve for x
    x = 3,676,841,875,429.98/2,618,839.40
  6. Step 6: Final answer
    x = 1,403,996.70

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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.