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Finding the Fourth Proportional to 421,633.08, 631,436.16 and 241,171.41

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Solution

The fourth proportional to 421,633.08, 631,436.16 and 241,171.41 is: 361,177.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,633.08 : 631,436.16 = 241,171.41 : x
  2. Step 2: Convert to fraction form
    421,633.08/631,436.16 = 241,171.41/x
  3. Step 3: Cross multiply
    421,633.08x = 631,436.16 × 241,171.41
  4. Step 4: Simplify right side
    421,633.08x = 152,284,349,032.19
  5. Step 5: Solve for x
    x = 152,284,349,032.19/421,633.08
  6. Step 6: Final answer
    x = 361,177.42

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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.