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Finding the Fourth Proportional to 437,793.40, 656,690.10 and 171,465.40

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Solution

The fourth proportional to 437,793.40, 656,690.10 and 171,465.40 is: 257,198.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,793.40 : 656,690.10 = 171,465.40 : x
  2. Step 2: Convert to fraction form
    437,793.40/656,690.10 = 171,465.40/x
  3. Step 3: Cross multiply
    437,793.40x = 656,690.10 × 171,465.40
  4. Step 4: Simplify right side
    437,793.40x = 112,599,630,672.54
  5. Step 5: Solve for x
    x = 112,599,630,672.54/437,793.40
  6. Step 6: Final answer
    x = 257,198.10

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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.