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Finding the Fourth Proportional to 703,745.53, 971,170.91 and 381,456.91

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Solution

The fourth proportional to 703,745.53, 971,170.91 and 381,456.91 is: 526,411.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,745.53 : 971,170.91 = 381,456.91 : x
  2. Step 2: Convert to fraction form
    703,745.53/971,170.91 = 381,456.91/x
  3. Step 3: Cross multiply
    703,745.53x = 971,170.91 × 381,456.91
  4. Step 4: Simplify right side
    703,745.53x = 370,459,857,293.33
  5. Step 5: Solve for x
    x = 370,459,857,293.33/703,745.53
  6. Step 6: Final answer
    x = 526,411.66

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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.