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Finding the Fourth Proportional to 624,843.65, 937,071.74 and 225,432.51

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Solution

The fourth proportional to 624,843.65, 937,071.74 and 225,432.51 is: 338,078.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,843.65 : 937,071.74 = 225,432.51 : x
  2. Step 2: Convert to fraction form
    624,843.65/937,071.74 = 225,432.51/x
  3. Step 3: Cross multiply
    624,843.65x = 937,071.74 × 225,432.51
  4. Step 4: Simplify right side
    624,843.65x = 211,246,433,271.11
  5. Step 5: Solve for x
    x = 211,246,433,271.11/624,843.65
  6. Step 6: Final answer
    x = 338,078.87

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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.