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Finding the Fourth Proportional to 467,139.72, 644,652.78 and 252,279.77

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Solution

The fourth proportional to 467,139.72, 644,652.78 and 252,279.77 is: 348,146.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,139.72 : 644,652.78 = 252,279.77 : x
  2. Step 2: Convert to fraction form
    467,139.72/644,652.78 = 252,279.77/x
  3. Step 3: Cross multiply
    467,139.72x = 644,652.78 × 252,279.77
  4. Step 4: Simplify right side
    467,139.72x = 162,632,851,845.00
  5. Step 5: Solve for x
    x = 162,632,851,845.00/467,139.72
  6. Step 6: Final answer
    x = 348,146.06

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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.