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Finding the Fourth Proportional to 322,718.61, 483,995.70 and 228,830.70

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Solution

The fourth proportional to 322,718.61, 483,995.70 and 228,830.70 is: 343,187.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,718.61 : 483,995.70 = 228,830.70 : x
  2. Step 2: Convert to fraction form
    322,718.61/483,995.70 = 228,830.70/x
  3. Step 3: Cross multiply
    322,718.61x = 483,995.70 × 228,830.70
  4. Step 4: Simplify right side
    322,718.61x = 110,753,074,827.99
  5. Step 5: Solve for x
    x = 110,753,074,827.99/322,718.61
  6. Step 6: Final answer
    x = 343,187.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.