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Finding the Fourth Proportional to 368,580.26, 508,513.47 and 223,432.58

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Solution

The fourth proportional to 368,580.26, 508,513.47 and 223,432.58 is: 308,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,580.26 : 508,513.47 = 223,432.58 : x
  2. Step 2: Convert to fraction form
    368,580.26/508,513.47 = 223,432.58/x
  3. Step 3: Cross multiply
    368,580.26x = 508,513.47 × 223,432.58
  4. Step 4: Simplify right side
    368,580.26x = 113,618,476,566.85
  5. Step 5: Solve for x
    x = 113,618,476,566.85/368,580.26
  6. Step 6: Final answer
    x = 308,259.80

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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.