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Finding the Fourth Proportional to 380,558.98, 570,872.18 and 100,076.24

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Solution

The fourth proportional to 380,558.98, 570,872.18 and 100,076.24 is: 150,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,558.98 : 570,872.18 = 100,076.24 : x
  2. Step 2: Convert to fraction form
    380,558.98/570,872.18 = 100,076.24/x
  3. Step 3: Cross multiply
    380,558.98x = 570,872.18 × 100,076.24
  4. Step 4: Simplify right side
    380,558.98x = 57,130,741,295.00
  5. Step 5: Solve for x
    x = 57,130,741,295.00/380,558.98
  6. Step 6: Final answer
    x = 150,123.22

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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.