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Finding the Fourth Proportional to 427,853.76, 590,446.56 and 236,861.76

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Solution

The fourth proportional to 427,853.76, 590,446.56 and 236,861.76 is: 326,873.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,853.76 : 590,446.56 = 236,861.76 : x
  2. Step 2: Convert to fraction form
    427,853.76/590,446.56 = 236,861.76/x
  3. Step 3: Cross multiply
    427,853.76x = 590,446.56 × 236,861.76
  4. Step 4: Simplify right side
    427,853.76x = 139,854,211,387.55
  5. Step 5: Solve for x
    x = 139,854,211,387.55/427,853.76
  6. Step 6: Final answer
    x = 326,873.86

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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.