Home / 2,191,128.80-3,286,693.20-695,218.40

Finding the Fourth Proportional to 2,191,128.80, 3,286,693.20 and 695,218.40

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Solution

The fourth proportional to 2,191,128.80, 3,286,693.20 and 695,218.40 is: 1,042,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,128.80 : 3,286,693.20 = 695,218.40 : x
  2. Step 2: Convert to fraction form
    2,191,128.80/3,286,693.20 = 695,218.40/x
  3. Step 3: Cross multiply
    2,191,128.80x = 3,286,693.20 × 695,218.40
  4. Step 4: Simplify right side
    2,191,128.80x = 2,284,969,587,794.88
  5. Step 5: Solve for x
    x = 2,284,969,587,794.88/2,191,128.80
  6. Step 6: Final answer
    x = 1,042,827.60

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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.