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Finding the Fourth Proportional to 383,424.74, 529,063.88 and 222,248.28

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Solution

The fourth proportional to 383,424.74, 529,063.88 and 222,248.28 is: 306,666.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,424.74 : 529,063.88 = 222,248.28 : x
  2. Step 2: Convert to fraction form
    383,424.74/529,063.88 = 222,248.28/x
  3. Step 3: Cross multiply
    383,424.74x = 529,063.88 × 222,248.28
  4. Step 4: Simplify right side
    383,424.74x = 117,583,536,228.89
  5. Step 5: Solve for x
    x = 117,583,536,228.89/383,424.74
  6. Step 6: Final answer
    x = 306,666.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.