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Finding the Fourth Proportional to 408,036.60, 612,256.05 and 183,555.90

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Solution

The fourth proportional to 408,036.60, 612,256.05 and 183,555.90 is: 275,424.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,036.60 : 612,256.05 = 183,555.90 : x
  2. Step 2: Convert to fraction form
    408,036.60/612,256.05 = 183,555.90/x
  3. Step 3: Cross multiply
    408,036.60x = 612,256.05 × 183,555.90
  4. Step 4: Simplify right side
    408,036.60x = 112,383,210,288.20
  5. Step 5: Solve for x
    x = 112,383,210,288.20/408,036.60
  6. Step 6: Final answer
    x = 275,424.34

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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.