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Finding the Fourth Proportional to 351,966.69, 486,114.95 and 238,592.61

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Solution

The fourth proportional to 351,966.69, 486,114.95 and 238,592.61 is: 329,529.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,966.69 : 486,114.95 = 238,592.61 : x
  2. Step 2: Convert to fraction form
    351,966.69/486,114.95 = 238,592.61/x
  3. Step 3: Cross multiply
    351,966.69x = 486,114.95 × 238,592.61
  4. Step 4: Simplify right side
    351,966.69x = 115,983,435,277.00
  5. Step 5: Solve for x
    x = 115,983,435,277.00/351,966.69
  6. Step 6: Final answer
    x = 329,529.58

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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.