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Finding the Fourth Proportional to 383,637.26, 529,420.66 and 222,587.66

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Solution

The fourth proportional to 383,637.26, 529,420.66 and 222,587.66 is: 307,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,637.26 : 529,420.66 = 222,587.66 : x
  2. Step 2: Convert to fraction form
    383,637.26/529,420.66 = 222,587.66/x
  3. Step 3: Cross multiply
    383,637.26x = 529,420.66 × 222,587.66
  4. Step 4: Simplify right side
    383,637.26x = 117,842,505,865.06
  5. Step 5: Solve for x
    x = 117,842,505,865.06/383,637.26
  6. Step 6: Final answer
    x = 307,171.69

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1.5x scale

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.