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Finding the Fourth Proportional to 454,378.46, 627,016.70 and 250,428.77

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Solution

The fourth proportional to 454,378.46, 627,016.70 and 250,428.77 is: 345,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,378.46 : 627,016.70 = 250,428.77 : x
  2. Step 2: Convert to fraction form
    454,378.46/627,016.70 = 250,428.77/x
  3. Step 3: Cross multiply
    454,378.46x = 627,016.70 × 250,428.77
  4. Step 4: Simplify right side
    454,378.46x = 157,023,016,563.23
  5. Step 5: Solve for x
    x = 157,023,016,563.23/454,378.46
  6. Step 6: Final answer
    x = 345,577.60

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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.