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Finding the Fourth Proportional to 378,464.40, 567,599.82 and 112,162.80

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Solution

The fourth proportional to 378,464.40, 567,599.82 and 112,162.80 is: 168,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,464.40 : 567,599.82 = 112,162.80 : x
  2. Step 2: Convert to fraction form
    378,464.40/567,599.82 = 112,162.80/x
  3. Step 3: Cross multiply
    378,464.40x = 567,599.82 × 112,162.80
  4. Step 4: Simplify right side
    378,464.40x = 63,663,585,090.70
  5. Step 5: Solve for x
    x = 63,663,585,090.70/378,464.40
  6. Step 6: Final answer
    x = 168,215.52

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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.