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Finding the Fourth Proportional to 438,040.24, 604,496.40 and 236,836.24

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Solution

The fourth proportional to 438,040.24, 604,496.40 and 236,836.24 is: 326,834.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,040.24 : 604,496.40 = 236,836.24 : x
  2. Step 2: Convert to fraction form
    438,040.24/604,496.40 = 236,836.24/x
  3. Step 3: Cross multiply
    438,040.24x = 604,496.40 × 236,836.24
  4. Step 4: Simplify right side
    438,040.24x = 143,166,654,469.54
  5. Step 5: Solve for x
    x = 143,166,654,469.54/438,040.24
  6. Step 6: Final answer
    x = 326,834.48

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.