Home / 1,280,342.32-1,766,851.68-699,553

Finding the Fourth Proportional to 1,280,342.32, 1,766,851.68 and 699,553

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Solution

The fourth proportional to 1,280,342.32, 1,766,851.68 and 699,553 is: 965,371.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,342.32 : 1,766,851.68 = 699,553 : x
  2. Step 2: Convert to fraction form
    1,280,342.32/1,766,851.68 = 699,553/x
  3. Step 3: Cross multiply
    1,280,342.32x = 1,766,851.68 × 699,553
  4. Step 4: Simplify right side
    1,280,342.32x = 1,236,006,393,299.04
  5. Step 5: Solve for x
    x = 1,236,006,393,299.04/1,280,342.32
  6. Step 6: Final answer
    x = 965,371.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.