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Finding the Fourth Proportional to 303,935.10, 455,246.55 and 197,646.90

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Solution

The fourth proportional to 303,935.10, 455,246.55 and 197,646.90 is: 296,043.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,935.10 : 455,246.55 = 197,646.90 : x
  2. Step 2: Convert to fraction form
    303,935.10/455,246.55 = 197,646.90/x
  3. Step 3: Cross multiply
    303,935.10x = 455,246.55 × 197,646.90
  4. Step 4: Simplify right side
    303,935.10x = 89,978,069,343.20
  5. Step 5: Solve for x
    x = 89,978,069,343.20/303,935.10
  6. Step 6: Final answer
    x = 296,043.69

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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.