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Finding the Fourth Proportional to 467,012.76, 644,493.42 and 276,189.72

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Solution

The fourth proportional to 467,012.76, 644,493.42 and 276,189.72 is: 381,151.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,012.76 : 644,493.42 = 276,189.72 : x
  2. Step 2: Convert to fraction form
    467,012.76/644,493.42 = 276,189.72/x
  3. Step 3: Cross multiply
    467,012.76x = 644,493.42 × 276,189.72
  4. Step 4: Simplify right side
    467,012.76x = 178,002,457,211.64
  5. Step 5: Solve for x
    x = 178,002,457,211.64/467,012.76
  6. Step 6: Final answer
    x = 381,151.16

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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.