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Finding the Fourth Proportional to 414,008.70, 620,575.65 and 236,132.70

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Solution

The fourth proportional to 414,008.70, 620,575.65 and 236,132.70 is: 353,949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,008.70 : 620,575.65 = 236,132.70 : x
  2. Step 2: Convert to fraction form
    414,008.70/620,575.65 = 236,132.70/x
  3. Step 3: Cross multiply
    414,008.70x = 620,575.65 × 236,132.70
  4. Step 4: Simplify right side
    414,008.70x = 146,538,203,788.76
  5. Step 5: Solve for x
    x = 146,538,203,788.76/414,008.70
  6. Step 6: Final answer
    x = 353,949.58

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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.