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Finding the Fourth Proportional to 405,061.20, 607,300.20 and 227,622.60

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Solution

The fourth proportional to 405,061.20, 607,300.20 and 227,622.60 is: 341,270.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,061.20 : 607,300.20 = 227,622.60 : x
  2. Step 2: Convert to fraction form
    405,061.20/607,300.20 = 227,622.60/x
  3. Step 3: Cross multiply
    405,061.20x = 607,300.20 × 227,622.60
  4. Step 4: Simplify right side
    405,061.20x = 138,235,250,504.52
  5. Step 5: Solve for x
    x = 138,235,250,504.52/405,061.20
  6. Step 6: Final answer
    x = 341,270.04

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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.