Home / 639,378.39-959,059.22-183,981.51

Finding the Fourth Proportional to 639,378.39, 959,059.22 and 183,981.51

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Solution

The fourth proportional to 639,378.39, 959,059.22 and 183,981.51 is: 275,969.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,378.39 : 959,059.22 = 183,981.51 : x
  2. Step 2: Convert to fraction form
    639,378.39/959,059.22 = 183,981.51/x
  3. Step 3: Cross multiply
    639,378.39x = 959,059.22 × 183,981.51
  4. Step 4: Simplify right side
    639,378.39x = 176,449,163,475.02
  5. Step 5: Solve for x
    x = 176,449,163,475.02/639,378.39
  6. Step 6: Final answer
    x = 275,969.86

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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.