Home / 859,611.20-1,186,241.91-477,638.96

Finding the Fourth Proportional to 859,611.20, 1,186,241.91 and 477,638.96

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Solution

The fourth proportional to 859,611.20, 1,186,241.91 and 477,638.96 is: 659,129.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,611.20 : 1,186,241.91 = 477,638.96 : x
  2. Step 2: Convert to fraction form
    859,611.20/1,186,241.91 = 477,638.96/x
  3. Step 3: Cross multiply
    859,611.20x = 1,186,241.91 × 477,638.96
  4. Step 4: Simplify right side
    859,611.20x = 566,595,352,200.81
  5. Step 5: Solve for x
    x = 566,595,352,200.81/859,611.20
  6. Step 6: Final answer
    x = 659,129.79

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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.