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Finding the Fourth Proportional to 703,697.63, 971,097.26 and 381,399.44

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Solution

The fourth proportional to 703,697.63, 971,097.26 and 381,399.44 is: 526,328.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,697.63 : 971,097.26 = 381,399.44 : x
  2. Step 2: Convert to fraction form
    703,697.63/971,097.26 = 381,399.44/x
  3. Step 3: Cross multiply
    703,697.63x = 971,097.26 × 381,399.44
  4. Step 4: Simplify right side
    703,697.63x = 370,375,944,387.05
  5. Step 5: Solve for x
    x = 370,375,944,387.05/703,697.63
  6. Step 6: Final answer
    x = 526,328.26

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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.