Home / 837,136.74-1,155,240.57-455,163.53

Finding the Fourth Proportional to 837,136.74, 1,155,240.57 and 455,163.53

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Solution

The fourth proportional to 837,136.74, 1,155,240.57 and 455,163.53 is: 628,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,136.74 : 1,155,240.57 = 455,163.53 : x
  2. Step 2: Convert to fraction form
    837,136.74/1,155,240.57 = 455,163.53/x
  3. Step 3: Cross multiply
    837,136.74x = 1,155,240.57 × 455,163.53
  4. Step 4: Simplify right side
    837,136.74x = 525,823,371,771.07
  5. Step 5: Solve for x
    x = 525,823,371,771.07/837,136.74
  6. Step 6: Final answer
    x = 628,121.24

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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.