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Finding the Fourth Proportional to 415,467.56, 623,285.18 and 131,202.52

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Solution

The fourth proportional to 415,467.56, 623,285.18 and 131,202.52 is: 196,830.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,467.56 : 623,285.18 = 131,202.52 : x
  2. Step 2: Convert to fraction form
    415,467.56/623,285.18 = 131,202.52/x
  3. Step 3: Cross multiply
    415,467.56x = 623,285.18 × 131,202.52
  4. Step 4: Simplify right side
    415,467.56x = 81,776,586,294.65
  5. Step 5: Solve for x
    x = 81,776,586,294.65/415,467.56
  6. Step 6: Final answer
    x = 196,830.26

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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.