Home / 639,812.76-959,926.42-190,537.36

Finding the Fourth Proportional to 639,812.76, 959,926.42 and 190,537.36

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Solution

The fourth proportional to 639,812.76, 959,926.42 and 190,537.36 is: 285,867.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,812.76 : 959,926.42 = 190,537.36 : x
  2. Step 2: Convert to fraction form
    639,812.76/959,926.42 = 190,537.36/x
  3. Step 3: Cross multiply
    639,812.76x = 959,926.42 × 190,537.36
  4. Step 4: Simplify right side
    639,812.76x = 182,901,845,861.05
  5. Step 5: Solve for x
    x = 182,901,845,861.05/639,812.76
  6. Step 6: Final answer
    x = 285,867.77

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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.