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Finding the Fourth Proportional to 408,297.30, 612,586.28 and 183,815.11

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Solution

The fourth proportional to 408,297.30, 612,586.28 and 183,815.11 is: 275,785.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,297.30 : 612,586.28 = 183,815.11 : x
  2. Step 2: Convert to fraction form
    408,297.30/612,586.28 = 183,815.11/x
  3. Step 3: Cross multiply
    408,297.30x = 612,586.28 × 183,815.11
  4. Step 4: Simplify right side
    408,297.30x = 112,602,614,442.69
  5. Step 5: Solve for x
    x = 112,602,614,442.69/408,297.30
  6. Step 6: Final answer
    x = 275,785.84

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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.