Home / 639,172.39-958,592.67-189,787.63

Finding the Fourth Proportional to 639,172.39, 958,592.67 and 189,787.63

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Solution

The fourth proportional to 639,172.39, 958,592.67 and 189,787.63 is: 284,632.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,172.39 : 958,592.67 = 189,787.63 : x
  2. Step 2: Convert to fraction form
    639,172.39/958,592.67 = 189,787.63/x
  3. Step 3: Cross multiply
    639,172.39x = 958,592.67 × 189,787.63
  4. Step 4: Simplify right side
    639,172.39x = 181,929,030,974.67
  5. Step 5: Solve for x
    x = 181,929,030,974.67/639,172.39
  6. Step 6: Final answer
    x = 284,632.18

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Double scale
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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.