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Finding the Fourth Proportional to 263,296.16, 395,799.60 and 211,274.72

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Solution

The fourth proportional to 263,296.16, 395,799.60 and 211,274.72 is: 317,598.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,296.16 : 395,799.60 = 211,274.72 : x
  2. Step 2: Convert to fraction form
    263,296.16/395,799.60 = 211,274.72/x
  3. Step 3: Cross multiply
    263,296.16x = 395,799.60 × 211,274.72
  4. Step 4: Simplify right side
    263,296.16x = 83,622,449,666.11
  5. Step 5: Solve for x
    x = 83,622,449,666.11/263,296.16
  6. Step 6: Final answer
    x = 317,598.44

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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.