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Finding the Fourth Proportional to 442,368.90, 663,553.80 and 109,944.90

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Solution

The fourth proportional to 442,368.90, 663,553.80 and 109,944.90 is: 164,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,368.90 : 663,553.80 = 109,944.90 : x
  2. Step 2: Convert to fraction form
    442,368.90/663,553.80 = 109,944.90/x
  3. Step 3: Cross multiply
    442,368.90x = 663,553.80 × 109,944.90
  4. Step 4: Simplify right side
    442,368.90x = 72,954,356,185.62
  5. Step 5: Solve for x
    x = 72,954,356,185.62/442,368.90
  6. Step 6: Final answer
    x = 164,917.46

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1.5x scale

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.