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Finding the Fourth Proportional to 490,783.42, 736,175.13 and 153,825.84

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Solution

The fourth proportional to 490,783.42, 736,175.13 and 153,825.84 is: 230,738.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,783.42 : 736,175.13 = 153,825.84 : x
  2. Step 2: Convert to fraction form
    490,783.42/736,175.13 = 153,825.84/x
  3. Step 3: Cross multiply
    490,783.42x = 736,175.13 × 153,825.84
  4. Step 4: Simplify right side
    490,783.42x = 113,242,757,012.54
  5. Step 5: Solve for x
    x = 113,242,757,012.54/490,783.42
  6. Step 6: Final answer
    x = 230,738.76

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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.