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Finding the Fourth Proportional to 340,881.44, 471,266.64 and 255,850.88

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Solution

The fourth proportional to 340,881.44, 471,266.64 and 255,850.88 is: 353,712.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,881.44 : 471,266.64 = 255,850.88 : x
  2. Step 2: Convert to fraction form
    340,881.44/471,266.64 = 255,850.88/x
  3. Step 3: Cross multiply
    340,881.44x = 471,266.64 × 255,850.88
  4. Step 4: Simplify right side
    340,881.44x = 120,573,984,558.64
  5. Step 5: Solve for x
    x = 120,573,984,558.64/340,881.44
  6. Step 6: Final answer
    x = 353,712.38

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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.