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Finding the Fourth Proportional to 893,099.90, 1,232,472.84 and 485,198.48

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Solution

The fourth proportional to 893,099.90, 1,232,472.84 and 485,198.48 is: 669,571.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,099.90 : 1,232,472.84 = 485,198.48 : x
  2. Step 2: Convert to fraction form
    893,099.90/1,232,472.84 = 485,198.48/x
  3. Step 3: Cross multiply
    893,099.90x = 1,232,472.84 × 485,198.48
  4. Step 4: Simplify right side
    893,099.90x = 597,993,948,609.28
  5. Step 5: Solve for x
    x = 597,993,948,609.28/893,099.90
  6. Step 6: Final answer
    x = 669,571.17

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1.5x scale

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.