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Finding the Fourth Proportional to 624,889.60, 937,140.72 and 225,478.48

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Solution

The fourth proportional to 624,889.60, 937,140.72 and 225,478.48 is: 338,147.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,889.60 : 937,140.72 = 225,478.48 : x
  2. Step 2: Convert to fraction form
    624,889.60/937,140.72 = 225,478.48/x
  3. Step 3: Cross multiply
    624,889.60x = 937,140.72 × 225,478.48
  4. Step 4: Simplify right side
    624,889.60x = 211,305,065,091.71
  5. Step 5: Solve for x
    x = 211,305,065,091.71/624,889.60
  6. Step 6: Final answer
    x = 338,147.83

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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.