Home / 513,223.20-769,834.80-158,205.60

Finding the Fourth Proportional to 513,223.20, 769,834.80 and 158,205.60

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Solution

The fourth proportional to 513,223.20, 769,834.80 and 158,205.60 is: 237,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,223.20 : 769,834.80 = 158,205.60 : x
  2. Step 2: Convert to fraction form
    513,223.20/769,834.80 = 158,205.60/x
  3. Step 3: Cross multiply
    513,223.20x = 769,834.80 × 158,205.60
  4. Step 4: Simplify right side
    513,223.20x = 121,792,176,434.88
  5. Step 5: Solve for x
    x = 121,792,176,434.88/513,223.20
  6. Step 6: Final answer
    x = 237,308.40

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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.