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Finding the Fourth Proportional to 522,387.58, 783,876.63 and 222,839.86

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Solution

The fourth proportional to 522,387.58, 783,876.63 and 222,839.86 is: 334,385.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,387.58 : 783,876.63 = 222,839.86 : x
  2. Step 2: Convert to fraction form
    522,387.58/783,876.63 = 222,839.86/x
  3. Step 3: Cross multiply
    522,387.58x = 783,876.63 × 222,839.86
  4. Step 4: Simplify right side
    522,387.58x = 174,678,958,486.47
  5. Step 5: Solve for x
    x = 174,678,958,486.47/522,387.58
  6. Step 6: Final answer
    x = 334,385.74

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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.