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Finding the Fourth Proportional to 324,291.90, 486,439.47 and 146,590.86

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Solution

The fourth proportional to 324,291.90, 486,439.47 and 146,590.86 is: 219,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,291.90 : 486,439.47 = 146,590.86 : x
  2. Step 2: Convert to fraction form
    324,291.90/486,439.47 = 146,590.86/x
  3. Step 3: Cross multiply
    324,291.90x = 486,439.47 × 146,590.86
  4. Step 4: Simplify right side
    324,291.90x = 71,307,580,245.24
  5. Step 5: Solve for x
    x = 71,307,580,245.24/324,291.90
  6. Step 6: Final answer
    x = 219,887.02

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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.