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Finding the Fourth Proportional to 536,584.11, 740,324.59 and 321,645.75

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Solution

The fourth proportional to 536,584.11, 740,324.59 and 321,645.75 is: 443,774.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,584.11 : 740,324.59 = 321,645.75 : x
  2. Step 2: Convert to fraction form
    536,584.11/740,324.59 = 321,645.75/x
  3. Step 3: Cross multiply
    536,584.11x = 740,324.59 × 321,645.75
  4. Step 4: Simplify right side
    536,584.11x = 238,122,256,222.92
  5. Step 5: Solve for x
    x = 238,122,256,222.92/536,584.11
  6. Step 6: Final answer
    x = 443,774.34

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Double scale
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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.