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Finding the Fourth Proportional to 290,192.40, 435,634.20 and 163,933.20

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Solution

The fourth proportional to 290,192.40, 435,634.20 and 163,933.20 is: 246,095.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,192.40 : 435,634.20 = 163,933.20 : x
  2. Step 2: Convert to fraction form
    290,192.40/435,634.20 = 163,933.20/x
  3. Step 3: Cross multiply
    290,192.40x = 435,634.20 × 163,933.20
  4. Step 4: Simplify right side
    290,192.40x = 71,414,908,435.44
  5. Step 5: Solve for x
    x = 71,414,908,435.44/290,192.40
  6. Step 6: Final answer
    x = 246,095.03

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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.