Home / 1,103,621.76-1,523,414.20-644,885.41

Finding the Fourth Proportional to 1,103,621.76, 1,523,414.20 and 644,885.41

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Solution

The fourth proportional to 1,103,621.76, 1,523,414.20 and 644,885.41 is: 890,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,621.76 : 1,523,414.20 = 644,885.41 : x
  2. Step 2: Convert to fraction form
    1,103,621.76/1,523,414.20 = 644,885.41/x
  3. Step 3: Cross multiply
    1,103,621.76x = 1,523,414.20 × 644,885.41
  4. Step 4: Simplify right side
    1,103,621.76x = 982,427,590,966.82
  5. Step 5: Solve for x
    x = 982,427,590,966.82/1,103,621.76
  6. Step 6: Final answer
    x = 890,185.05

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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.