Home / 583,223.20-874,834.80-139,991.20

Finding the Fourth Proportional to 583,223.20, 874,834.80 and 139,991.20

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Solution

The fourth proportional to 583,223.20, 874,834.80 and 139,991.20 is: 209,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,223.20 : 874,834.80 = 139,991.20 : x
  2. Step 2: Convert to fraction form
    583,223.20/874,834.80 = 139,991.20/x
  3. Step 3: Cross multiply
    583,223.20x = 874,834.80 × 139,991.20
  4. Step 4: Simplify right side
    583,223.20x = 122,469,173,453.76
  5. Step 5: Solve for x
    x = 122,469,173,453.76/583,223.20
  6. Step 6: Final answer
    x = 209,986.80

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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.