Home / 439,811.66-659,719.12-187,056.02

Finding the Fourth Proportional to 439,811.66, 659,719.12 and 187,056.02

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Solution

The fourth proportional to 439,811.66, 659,719.12 and 187,056.02 is: 280,584.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,811.66 : 659,719.12 = 187,056.02 : x
  2. Step 2: Convert to fraction form
    439,811.66/659,719.12 = 187,056.02/x
  3. Step 3: Cross multiply
    439,811.66x = 659,719.12 × 187,056.02
  4. Step 4: Simplify right side
    439,811.66x = 123,404,432,905.10
  5. Step 5: Solve for x
    x = 123,404,432,905.10/439,811.66
  6. Step 6: Final answer
    x = 280,584.72

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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.