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Finding the Fourth Proportional to 356,696.92, 492,292.02 and 220,774.60

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Solution

The fourth proportional to 356,696.92, 492,292.02 and 220,774.60 is: 304,700.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,696.92 : 492,292.02 = 220,774.60 : x
  2. Step 2: Convert to fraction form
    356,696.92/492,292.02 = 220,774.60/x
  3. Step 3: Cross multiply
    356,696.92x = 492,292.02 × 220,774.60
  4. Step 4: Simplify right side
    356,696.92x = 108,685,573,798.69
  5. Step 5: Solve for x
    x = 108,685,573,798.69/356,696.92
  6. Step 6: Final answer
    x = 304,700.06

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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.