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Finding the Fourth Proportional to 383,957.96, 529,967.36 and 222,864.91

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Solution

The fourth proportional to 383,957.96, 529,967.36 and 222,864.91 is: 307,614.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,957.96 : 529,967.36 = 222,864.91 : x
  2. Step 2: Convert to fraction form
    383,957.96/529,967.36 = 222,864.91/x
  3. Step 3: Cross multiply
    383,957.96x = 529,967.36 × 222,864.91
  4. Step 4: Simplify right side
    383,957.96x = 118,111,127,221.58
  5. Step 5: Solve for x
    x = 118,111,127,221.58/383,957.96
  6. Step 6: Final answer
    x = 307,614.74

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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.