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Finding the Fourth Proportional to 418,174.21, 627,187.29 and 190,417.60

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Solution

The fourth proportional to 418,174.21, 627,187.29 and 190,417.60 is: 285,592.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,174.21 : 627,187.29 = 190,417.60 : x
  2. Step 2: Convert to fraction form
    418,174.21/627,187.29 = 190,417.60/x
  3. Step 3: Cross multiply
    418,174.21x = 627,187.29 × 190,417.60
  4. Step 4: Simplify right side
    418,174.21x = 119,427,498,512.30
  5. Step 5: Solve for x
    x = 119,427,498,512.30/418,174.21
  6. Step 6: Final answer
    x = 285,592.69

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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.