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Finding the Fourth Proportional to 405,224.91, 607,646.54 and 236,793.92

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Solution

The fourth proportional to 405,224.91, 607,646.54 and 236,793.92 is: 355,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,224.91 : 607,646.54 = 236,793.92 : x
  2. Step 2: Convert to fraction form
    405,224.91/607,646.54 = 236,793.92/x
  3. Step 3: Cross multiply
    405,224.91x = 607,646.54 × 236,793.92
  4. Step 4: Simplify right side
    405,224.91x = 143,887,003,734.79
  5. Step 5: Solve for x
    x = 143,887,003,734.79/405,224.91
  6. Step 6: Final answer
    x = 355,079.37

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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.