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Finding the Fourth Proportional to 403,720.04, 605,596.80 and 150,975.20

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Solution

The fourth proportional to 403,720.04, 605,596.80 and 150,975.20 is: 226,469.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,720.04 : 605,596.80 = 150,975.20 : x
  2. Step 2: Convert to fraction form
    403,720.04/605,596.80 = 150,975.20/x
  3. Step 3: Cross multiply
    403,720.04x = 605,596.80 × 150,975.20
  4. Step 4: Simplify right side
    403,720.04x = 91,430,097,999.36
  5. Step 5: Solve for x
    x = 91,430,097,999.36/403,720.04
  6. Step 6: Final answer
    x = 226,469.06

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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.