Home / 603,578.40-905,367.42-154,300.20

Finding the Fourth Proportional to 603,578.40, 905,367.42 and 154,300.20

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Solution

The fourth proportional to 603,578.40, 905,367.42 and 154,300.20 is: 231,450.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,578.40 : 905,367.42 = 154,300.20 : x
  2. Step 2: Convert to fraction form
    603,578.40/905,367.42 = 154,300.20/x
  3. Step 3: Cross multiply
    603,578.40x = 905,367.42 × 154,300.20
  4. Step 4: Simplify right side
    603,578.40x = 139,698,373,979.48
  5. Step 5: Solve for x
    x = 139,698,373,979.48/603,578.40
  6. Step 6: Final answer
    x = 231,450.25

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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.