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Finding the Fourth Proportional to 454,408.74, 627,111.45 and 250,459.38

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Solution

The fourth proportional to 454,408.74, 627,111.45 and 250,459.38 is: 345,649.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,408.74 : 627,111.45 = 250,459.38 : x
  2. Step 2: Convert to fraction form
    454,408.74/627,111.45 = 250,459.38/x
  3. Step 3: Cross multiply
    454,408.74x = 627,111.45 × 250,459.38
  4. Step 4: Simplify right side
    454,408.74x = 157,065,944,957.90
  5. Step 5: Solve for x
    x = 157,065,944,957.90/454,408.74
  6. Step 6: Final answer
    x = 345,649.04

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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.