Home / 1,191,580.20-1,786,808.70-432,886.60

Finding the Fourth Proportional to 1,191,580.20, 1,786,808.70 and 432,886.60

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Solution

The fourth proportional to 1,191,580.20, 1,786,808.70 and 432,886.60 is: 649,125.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,580.20 : 1,786,808.70 = 432,886.60 : x
  2. Step 2: Convert to fraction form
    1,191,580.20/1,786,808.70 = 432,886.60/x
  3. Step 3: Cross multiply
    1,191,580.20x = 1,786,808.70 × 432,886.60
  4. Step 4: Simplify right side
    1,191,580.20x = 773,485,542,993.42
  5. Step 5: Solve for x
    x = 773,485,542,993.42/1,191,580.20
  6. Step 6: Final answer
    x = 649,125.88

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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.