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Finding the Fourth Proportional to 508,475.50, 762,676.09 and 238,665.11

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Solution

The fourth proportional to 508,475.50, 762,676.09 and 238,665.11 is: 357,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,475.50 : 762,676.09 = 238,665.11 : x
  2. Step 2: Convert to fraction form
    508,475.50/762,676.09 = 238,665.11/x
  3. Step 3: Cross multiply
    508,475.50x = 762,676.09 × 238,665.11
  4. Step 4: Simplify right side
    508,475.50x = 182,024,168,504.18
  5. Step 5: Solve for x
    x = 182,024,168,504.18/508,475.50
  6. Step 6: Final answer
    x = 357,980.22

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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.