Home / 689,933.32-951,995.08-399,441.40

Finding the Fourth Proportional to 689,933.32, 951,995.08 and 399,441.40

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Solution

The fourth proportional to 689,933.32, 951,995.08 and 399,441.40 is: 551,163.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,933.32 : 951,995.08 = 399,441.40 : x
  2. Step 2: Convert to fraction form
    689,933.32/951,995.08 = 399,441.40/x
  3. Step 3: Cross multiply
    689,933.32x = 951,995.08 × 399,441.40
  4. Step 4: Simplify right side
    689,933.32x = 380,266,247,548.31
  5. Step 5: Solve for x
    x = 380,266,247,548.31/689,933.32
  6. Step 6: Final answer
    x = 551,163.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.