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Finding the Fourth Proportional to 303,442.35, 455,655.60 and 204,043.20

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Solution

The fourth proportional to 303,442.35, 455,655.60 and 204,043.20 is: 306,395.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,442.35 : 455,655.60 = 204,043.20 : x
  2. Step 2: Convert to fraction form
    303,442.35/455,655.60 = 204,043.20/x
  3. Step 3: Cross multiply
    303,442.35x = 455,655.60 × 204,043.20
  4. Step 4: Simplify right side
    303,442.35x = 92,973,426,721.92
  5. Step 5: Solve for x
    x = 92,973,426,721.92/303,442.35
  6. Step 6: Final answer
    x = 306,395.69

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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.