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Finding the Fourth Proportional to 615,991.38, 850,059.14 and 344,063.14

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Solution

The fourth proportional to 615,991.38, 850,059.14 and 344,063.14 is: 474,802.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,991.38 : 850,059.14 = 344,063.14 : x
  2. Step 2: Convert to fraction form
    615,991.38/850,059.14 = 344,063.14/x
  3. Step 3: Cross multiply
    615,991.38x = 850,059.14 × 344,063.14
  4. Step 4: Simplify right side
    615,991.38x = 292,474,016,894.10
  5. Step 5: Solve for x
    x = 292,474,016,894.10/615,991.38
  6. Step 6: Final answer
    x = 474,802.13

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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.