Home / 639,018.80-958,664.28-189,740.96

Finding the Fourth Proportional to 639,018.80, 958,664.28 and 189,740.96

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Solution

The fourth proportional to 639,018.80, 958,664.28 and 189,740.96 is: 284,651.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,018.80 : 958,664.28 = 189,740.96 : x
  2. Step 2: Convert to fraction form
    639,018.80/958,664.28 = 189,740.96/x
  3. Step 3: Cross multiply
    639,018.80x = 958,664.28 × 189,740.96
  4. Step 4: Simplify right side
    639,018.80x = 181,897,880,804.91
  5. Step 5: Solve for x
    x = 181,897,880,804.91/639,018.80
  6. Step 6: Final answer
    x = 284,651.85

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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.