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Finding the Fourth Proportional to 412,470.40, 618,705.60 and 367,369.60

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Solution

The fourth proportional to 412,470.40, 618,705.60 and 367,369.60 is: 551,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,470.40 : 618,705.60 = 367,369.60 : x
  2. Step 2: Convert to fraction form
    412,470.40/618,705.60 = 367,369.60/x
  3. Step 3: Cross multiply
    412,470.40x = 618,705.60 × 367,369.60
  4. Step 4: Simplify right side
    412,470.40x = 227,293,628,789.76
  5. Step 5: Solve for x
    x = 227,293,628,789.76/412,470.40
  6. Step 6: Final answer
    x = 551,054.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.