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Finding the Fourth Proportional to 424,868.66, 586,326.21 and 231,281.94

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Solution

The fourth proportional to 424,868.66, 586,326.21 and 231,281.94 is: 319,173.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,868.66 : 586,326.21 = 231,281.94 : x
  2. Step 2: Convert to fraction form
    424,868.66/586,326.21 = 231,281.94/x
  3. Step 3: Cross multiply
    424,868.66x = 586,326.21 × 231,281.94
  4. Step 4: Simplify right side
    424,868.66x = 135,606,663,321.65
  5. Step 5: Solve for x
    x = 135,606,663,321.65/424,868.66
  6. Step 6: Final answer
    x = 319,173.14

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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.