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Finding the Fourth Proportional to 534,825.40, 802,238.10 and 234,987.70

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Solution

The fourth proportional to 534,825.40, 802,238.10 and 234,987.70 is: 352,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,825.40 : 802,238.10 = 234,987.70 : x
  2. Step 2: Convert to fraction form
    534,825.40/802,238.10 = 234,987.70/x
  3. Step 3: Cross multiply
    534,825.40x = 802,238.10 × 234,987.70
  4. Step 4: Simplify right side
    534,825.40x = 188,516,085,971.37
  5. Step 5: Solve for x
    x = 188,516,085,971.37/534,825.40
  6. Step 6: Final answer
    x = 352,481.55

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Similar ratio
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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.