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Finding the Fourth Proportional to 457,519.59, 631,225.71 and 276,162.62

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Solution

The fourth proportional to 457,519.59, 631,225.71 and 276,162.62 is: 381,013.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,519.59 : 631,225.71 = 276,162.62 : x
  2. Step 2: Convert to fraction form
    457,519.59/631,225.71 = 276,162.62/x
  3. Step 3: Cross multiply
    457,519.59x = 631,225.71 × 276,162.62
  4. Step 4: Simplify right side
    457,519.59x = 174,320,942,728.83
  5. Step 5: Solve for x
    x = 174,320,942,728.83/457,519.59
  6. Step 6: Final answer
    x = 381,013.07

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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.