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Finding the Fourth Proportional to 432,090.30, 648,049.05 and 207,450.30

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Solution

The fourth proportional to 432,090.30, 648,049.05 and 207,450.30 is: 311,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,090.30 : 648,049.05 = 207,450.30 : x
  2. Step 2: Convert to fraction form
    432,090.30/648,049.05 = 207,450.30/x
  3. Step 3: Cross multiply
    432,090.30x = 648,049.05 × 207,450.30
  4. Step 4: Simplify right side
    432,090.30x = 134,437,969,837.22
  5. Step 5: Solve for x
    x = 134,437,969,837.22/432,090.30
  6. Step 6: Final answer
    x = 311,133.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.