Home / 438,828.72-658,265.64-123,310.23

Finding the Fourth Proportional to 438,828.72, 658,265.64 and 123,310.23

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Solution

The fourth proportional to 438,828.72, 658,265.64 and 123,310.23 is: 184,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,828.72 : 658,265.64 = 123,310.23 : x
  2. Step 2: Convert to fraction form
    438,828.72/658,265.64 = 123,310.23/x
  3. Step 3: Cross multiply
    438,828.72x = 658,265.64 × 123,310.23
  4. Step 4: Simplify right side
    438,828.72x = 81,170,887,469.50
  5. Step 5: Solve for x
    x = 81,170,887,469.50/438,828.72
  6. Step 6: Final answer
    x = 184,971.68

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1.5x scale

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.