Home / 639,443.20-959,164.56-190,162.24

Finding the Fourth Proportional to 639,443.20, 959,164.56 and 190,162.24

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Solution

The fourth proportional to 639,443.20, 959,164.56 and 190,162.24 is: 285,243.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,443.20 : 959,164.56 = 190,162.24 : x
  2. Step 2: Convert to fraction form
    639,443.20/959,164.56 = 190,162.24/x
  3. Step 3: Cross multiply
    639,443.20x = 959,164.56 × 190,162.24
  4. Step 4: Simplify right side
    639,443.20x = 182,396,881,258.21
  5. Step 5: Solve for x
    x = 182,396,881,258.21/639,443.20
  6. Step 6: Final answer
    x = 285,243.29

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.