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Finding the Fourth Proportional to 451,443.51, 677,253.74 and 167,136.40

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Solution

The fourth proportional to 451,443.51, 677,253.74 and 167,136.40 is: 250,737.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,443.51 : 677,253.74 = 167,136.40 : x
  2. Step 2: Convert to fraction form
    451,443.51/677,253.74 = 167,136.40/x
  3. Step 3: Cross multiply
    451,443.51x = 677,253.74 × 167,136.40
  4. Step 4: Simplify right side
    451,443.51x = 113,193,751,990.14
  5. Step 5: Solve for x
    x = 113,193,751,990.14/451,443.51
  6. Step 6: Final answer
    x = 250,737.36

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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.