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Finding the Fourth Proportional to 476,105.21, 657,023.37 and 261,248.87

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Solution

The fourth proportional to 476,105.21, 657,023.37 and 261,248.87 is: 360,522.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,105.21 : 657,023.37 = 261,248.87 : x
  2. Step 2: Convert to fraction form
    476,105.21/657,023.37 = 261,248.87/x
  3. Step 3: Cross multiply
    476,105.21x = 657,023.37 × 261,248.87
  4. Step 4: Simplify right side
    476,105.21x = 171,646,609,690.98
  5. Step 5: Solve for x
    x = 171,646,609,690.98/476,105.21
  6. Step 6: Final answer
    x = 360,522.44

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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.