Home / 439,644.11-659,465.15-288,793.40

Finding the Fourth Proportional to 439,644.11, 659,465.15 and 288,793.40

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Solution

The fourth proportional to 439,644.11, 659,465.15 and 288,793.40 is: 433,189.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,644.11 : 659,465.15 = 288,793.40 : x
  2. Step 2: Convert to fraction form
    439,644.11/659,465.15 = 288,793.40/x
  3. Step 3: Cross multiply
    439,644.11x = 659,465.15 × 288,793.40
  4. Step 4: Simplify right side
    439,644.11x = 190,449,181,406.04
  5. Step 5: Solve for x
    x = 190,449,181,406.04/439,644.11
  6. Step 6: Final answer
    x = 433,189.43

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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.