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Finding the Fourth Proportional to 615,508.50, 923,382.45 and 236,401.50

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Solution

The fourth proportional to 615,508.50, 923,382.45 and 236,401.50 is: 354,648.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,508.50 : 923,382.45 = 236,401.50 : x
  2. Step 2: Convert to fraction form
    615,508.50/923,382.45 = 236,401.50/x
  3. Step 3: Cross multiply
    615,508.50x = 923,382.45 × 236,401.50
  4. Step 4: Simplify right side
    615,508.50x = 218,288,996,253.68
  5. Step 5: Solve for x
    x = 218,288,996,253.68/615,508.50
  6. Step 6: Final answer
    x = 354,648.22

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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.