Home / 1,929,105.28-2,893,541.28-863,861.32

Finding the Fourth Proportional to 1,929,105.28, 2,893,541.28 and 863,861.32

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Solution

The fourth proportional to 1,929,105.28, 2,893,541.28 and 863,861.32 is: 1,295,739.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929,105.28 : 2,893,541.28 = 863,861.32 : x
  2. Step 2: Convert to fraction form
    1,929,105.28/2,893,541.28 = 863,861.32/x
  3. Step 3: Cross multiply
    1,929,105.28x = 2,893,541.28 × 863,861.32
  4. Step 4: Simplify right side
    1,929,105.28x = 2,499,618,389,615.29
  5. Step 5: Solve for x
    x = 2,499,618,389,615.29/1,929,105.28
  6. Step 6: Final answer
    x = 1,295,739.75

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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.