Home / 2,159,096.80-3,238,645.20-663,186.40

Finding the Fourth Proportional to 2,159,096.80, 3,238,645.20 and 663,186.40

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Solution

The fourth proportional to 2,159,096.80, 3,238,645.20 and 663,186.40 is: 994,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159,096.80 : 3,238,645.20 = 663,186.40 : x
  2. Step 2: Convert to fraction form
    2,159,096.80/3,238,645.20 = 663,186.40/x
  3. Step 3: Cross multiply
    2,159,096.80x = 3,238,645.20 × 663,186.40
  4. Step 4: Simplify right side
    2,159,096.80x = 2,147,825,451,065.28
  5. Step 5: Solve for x
    x = 2,147,825,451,065.28/2,159,096.80
  6. Step 6: Final answer
    x = 994,779.60

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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.