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Finding the Fourth Proportional to 1,103,803.72, 1,522,979.22 and 673,927.24

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Solution

The fourth proportional to 1,103,803.72, 1,522,979.22 and 673,927.24 is: 929,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,803.72 : 1,522,979.22 = 673,927.24 : x
  2. Step 2: Convert to fraction form
    1,103,803.72/1,522,979.22 = 673,927.24/x
  3. Step 3: Cross multiply
    1,103,803.72x = 1,522,979.22 × 673,927.24
  4. Step 4: Simplify right side
    1,103,803.72x = 1,026,377,182,311.95
  5. Step 5: Solve for x
    x = 1,026,377,182,311.95/1,103,803.72
  6. Step 6: Final answer
    x = 929,854.80

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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.