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Finding the Fourth Proportional to 292,572.60, 403,728.30 and 165,247.80

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Solution

The fourth proportional to 292,572.60, 403,728.30 and 165,247.80 is: 228,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,572.60 : 403,728.30 = 165,247.80 : x
  2. Step 2: Convert to fraction form
    292,572.60/403,728.30 = 165,247.80/x
  3. Step 3: Cross multiply
    292,572.60x = 403,728.30 × 165,247.80
  4. Step 4: Simplify right side
    292,572.60x = 66,715,213,372.74
  5. Step 5: Solve for x
    x = 66,715,213,372.74/292,572.60
  6. Step 6: Final answer
    x = 228,029.60

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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.