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Finding the Fourth Proportional to 375,638.65, 518,185.24 and 230,476.82

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Solution

The fourth proportional to 375,638.65, 518,185.24 and 230,476.82 is: 317,937.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,638.65 : 518,185.24 = 230,476.82 : x
  2. Step 2: Convert to fraction form
    375,638.65/518,185.24 = 230,476.82/x
  3. Step 3: Cross multiply
    375,638.65x = 518,185.24 × 230,476.82
  4. Step 4: Simplify right side
    375,638.65x = 119,429,683,119.02
  5. Step 5: Solve for x
    x = 119,429,683,119.02/375,638.65
  6. Step 6: Final answer
    x = 317,937.69

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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.