Home / 738,136.80-1,107,205.20-605,167.20

Finding the Fourth Proportional to 738,136.80, 1,107,205.20 and 605,167.20

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Solution

The fourth proportional to 738,136.80, 1,107,205.20 and 605,167.20 is: 907,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,136.80 : 1,107,205.20 = 605,167.20 : x
  2. Step 2: Convert to fraction form
    738,136.80/1,107,205.20 = 605,167.20/x
  3. Step 3: Cross multiply
    738,136.80x = 1,107,205.20 × 605,167.20
  4. Step 4: Simplify right side
    738,136.80x = 670,044,270,709.44
  5. Step 5: Solve for x
    x = 670,044,270,709.44/738,136.80
  6. Step 6: Final answer
    x = 907,750.80

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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.