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Finding the Fourth Proportional to 589,388.82, 813,454.83 and 347,731.26

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Solution

The fourth proportional to 589,388.82, 813,454.83 and 347,731.26 is: 479,927.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,388.82 : 813,454.83 = 347,731.26 : x
  2. Step 2: Convert to fraction form
    589,388.82/813,454.83 = 347,731.26/x
  3. Step 3: Cross multiply
    589,388.82x = 813,454.83 × 347,731.26
  4. Step 4: Simplify right side
    589,388.82x = 282,863,672,988.99
  5. Step 5: Solve for x
    x = 282,863,672,988.99/589,388.82
  6. Step 6: Final answer
    x = 479,927.11

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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.