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Finding the Fourth Proportional to 467,015.76, 644,497.56 and 276,192.72

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Solution

The fourth proportional to 467,015.76, 644,497.56 and 276,192.72 is: 381,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,015.76 : 644,497.56 = 276,192.72 : x
  2. Step 2: Convert to fraction form
    467,015.76/644,497.56 = 276,192.72/x
  3. Step 3: Cross multiply
    467,015.76x = 644,497.56 × 276,192.72
  4. Step 4: Simplify right side
    467,015.76x = 178,005,534,129.76
  5. Step 5: Solve for x
    x = 178,005,534,129.76/467,015.76
  6. Step 6: Final answer
    x = 381,155.30

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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.