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Finding the Fourth Proportional to 413,633.60, 620,911.20 and 227,009.60

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Solution

The fourth proportional to 413,633.60, 620,911.20 and 227,009.60 is: 340,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,633.60 : 620,911.20 = 227,009.60 : x
  2. Step 2: Convert to fraction form
    413,633.60/620,911.20 = 227,009.60/x
  3. Step 3: Cross multiply
    413,633.60x = 620,911.20 × 227,009.60
  4. Step 4: Simplify right side
    413,633.60x = 140,952,803,147.52
  5. Step 5: Solve for x
    x = 140,952,803,147.52/413,633.60
  6. Step 6: Final answer
    x = 340,767.30

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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.