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Finding the Fourth Proportional to 324,671.90, 487,007.85 and 324,671.90

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Solution

The fourth proportional to 324,671.90, 487,007.85 and 324,671.90 is: 487,007.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,671.90 : 487,007.85 = 324,671.90 : x
  2. Step 2: Convert to fraction form
    324,671.90/487,007.85 = 324,671.90/x
  3. Step 3: Cross multiply
    324,671.90x = 487,007.85 × 324,671.90
  4. Step 4: Simplify right side
    324,671.90x = 158,117,763,974.42
  5. Step 5: Solve for x
    x = 158,117,763,974.42/324,671.90
  6. Step 6: Final answer
    x = 487,007.85

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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.