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Finding the Fourth Proportional to 303,437.60, 455,648.48 and 204,038.45

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Solution

The fourth proportional to 303,437.60, 455,648.48 and 204,038.45 is: 306,388.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,437.60 : 455,648.48 = 204,038.45 : x
  2. Step 2: Convert to fraction form
    303,437.60/455,648.48 = 204,038.45/x
  3. Step 3: Cross multiply
    303,437.60x = 455,648.48 × 204,038.45
  4. Step 4: Simplify right side
    303,437.60x = 92,969,808,583.86
  5. Step 5: Solve for x
    x = 92,969,808,583.86/303,437.60
  6. Step 6: Final answer
    x = 306,388.56

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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.