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Finding the Fourth Proportional to 463,326.50, 639,386.25 and 262,122.50

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Solution

The fourth proportional to 463,326.50, 639,386.25 and 262,122.50 is: 361,726.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,326.50 : 639,386.25 = 262,122.50 : x
  2. Step 2: Convert to fraction form
    463,326.50/639,386.25 = 262,122.50/x
  3. Step 3: Cross multiply
    463,326.50x = 639,386.25 × 262,122.50
  4. Step 4: Simplify right side
    463,326.50x = 167,597,522,315.63
  5. Step 5: Solve for x
    x = 167,597,522,315.63/463,326.50
  6. Step 6: Final answer
    x = 361,726.61

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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.