Home / 639,136.71-958,541.05-189,753.32

Finding the Fourth Proportional to 639,136.71, 958,541.05 and 189,753.32

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Solution

The fourth proportional to 639,136.71, 958,541.05 and 189,753.32 is: 284,581.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,136.71 : 958,541.05 = 189,753.32 : x
  2. Step 2: Convert to fraction form
    639,136.71/958,541.05 = 189,753.32/x
  3. Step 3: Cross multiply
    639,136.71x = 958,541.05 × 189,753.32
  4. Step 4: Simplify right side
    639,136.71x = 181,886,346,593.79
  5. Step 5: Solve for x
    x = 181,886,346,593.79/639,136.71
  6. Step 6: Final answer
    x = 284,581.29

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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.