Home / 1,985,176.20-2,969,891.10-1,721,861.40

Finding the Fourth Proportional to 1,985,176.20, 2,969,891.10 and 1,721,861.40

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Solution

The fourth proportional to 1,985,176.20, 2,969,891.10 and 1,721,861.40 is: 2,575,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,176.20 : 2,969,891.10 = 1,721,861.40 : x
  2. Step 2: Convert to fraction form
    1,985,176.20/2,969,891.10 = 1,721,861.40/x
  3. Step 3: Cross multiply
    1,985,176.20x = 2,969,891.10 × 1,721,861.40
  4. Step 4: Simplify right side
    1,985,176.20x = 5,113,740,847,293.54
  5. Step 5: Solve for x
    x = 5,113,740,847,293.54/1,985,176.20
  6. Step 6: Final answer
    x = 2,575,963.21

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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.