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Finding the Fourth Proportional to 454,358.23, 627,012.30 and 250,408.71

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Solution

The fourth proportional to 454,358.23, 627,012.30 and 250,408.71 is: 345,562.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,358.23 : 627,012.30 = 250,408.71 : x
  2. Step 2: Convert to fraction form
    454,358.23/627,012.30 = 250,408.71/x
  3. Step 3: Cross multiply
    454,358.23x = 627,012.30 × 250,408.71
  4. Step 4: Simplify right side
    454,358.23x = 157,009,341,197.13
  5. Step 5: Solve for x
    x = 157,009,341,197.13/454,358.23
  6. Step 6: Final answer
    x = 345,562.89

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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.