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Finding the Fourth Proportional to 373,376, 515,297.76 and 230,132.36

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Solution

The fourth proportional to 373,376, 515,297.76 and 230,132.36 is: 317,606.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,376 : 515,297.76 = 230,132.36 : x
  2. Step 2: Convert to fraction form
    373,376/515,297.76 = 230,132.36/x
  3. Step 3: Cross multiply
    373,376x = 515,297.76 × 230,132.36
  4. Step 4: Simplify right side
    373,376x = 118,586,689,611.51
  5. Step 5: Solve for x
    x = 118,586,689,611.51/373,376
  6. Step 6: Final answer
    x = 317,606.62

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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.