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Finding the Fourth Proportional to 292,698.72, 403,932.16 and 165,371.60

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Solution

The fourth proportional to 292,698.72, 403,932.16 and 165,371.60 is: 228,217.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,698.72 : 403,932.16 = 165,371.60 : x
  2. Step 2: Convert to fraction form
    292,698.72/403,932.16 = 165,371.60/x
  3. Step 3: Cross multiply
    292,698.72x = 403,932.16 × 165,371.60
  4. Step 4: Simplify right side
    292,698.72x = 66,798,907,590.66
  5. Step 5: Solve for x
    x = 66,798,907,590.66/292,698.72
  6. Step 6: Final answer
    x = 228,217.29

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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.