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Finding the Fourth Proportional to 366,954.40, 550,431.60 and 307,905.40

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Solution

The fourth proportional to 366,954.40, 550,431.60 and 307,905.40 is: 461,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,954.40 : 550,431.60 = 307,905.40 : x
  2. Step 2: Convert to fraction form
    366,954.40/550,431.60 = 307,905.40/x
  3. Step 3: Cross multiply
    366,954.40x = 550,431.60 × 307,905.40
  4. Step 4: Simplify right side
    366,954.40x = 169,480,861,970.64
  5. Step 5: Solve for x
    x = 169,480,861,970.64/366,954.40
  6. Step 6: Final answer
    x = 461,858.10

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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.