Home / 639,381.26-959,071.62-190,100.18

Finding the Fourth Proportional to 639,381.26, 959,071.62 and 190,100.18

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Solution

The fourth proportional to 639,381.26, 959,071.62 and 190,100.18 is: 285,150.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,381.26 : 959,071.62 = 190,100.18 : x
  2. Step 2: Convert to fraction form
    639,381.26/959,071.62 = 190,100.18/x
  3. Step 3: Cross multiply
    639,381.26x = 959,071.62 × 190,100.18
  4. Step 4: Simplify right side
    639,381.26x = 182,319,687,594.89
  5. Step 5: Solve for x
    x = 182,319,687,594.89/639,381.26
  6. Step 6: Final answer
    x = 285,150.19

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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.