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Finding the Fourth Proportional to 454,445.72, 627,106.53 and 250,485.41

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Solution

The fourth proportional to 454,445.72, 627,106.53 and 250,485.41 is: 345,654.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,445.72 : 627,106.53 = 250,485.41 : x
  2. Step 2: Convert to fraction form
    454,445.72/627,106.53 = 250,485.41/x
  3. Step 3: Cross multiply
    454,445.72x = 627,106.53 × 250,485.41
  4. Step 4: Simplify right side
    454,445.72x = 157,081,036,280.73
  5. Step 5: Solve for x
    x = 157,081,036,280.73/454,445.72
  6. Step 6: Final answer
    x = 345,654.12

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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.