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Finding the Fourth Proportional to 476,196.67, 657,149.34 and 261,340.21

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Solution

The fourth proportional to 476,196.67, 657,149.34 and 261,340.21 is: 360,648.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,196.67 : 657,149.34 = 261,340.21 : x
  2. Step 2: Convert to fraction form
    476,196.67/657,149.34 = 261,340.21/x
  3. Step 3: Cross multiply
    476,196.67x = 657,149.34 × 261,340.21
  4. Step 4: Simplify right side
    476,196.67x = 171,739,546,516.96
  5. Step 5: Solve for x
    x = 171,739,546,516.96/476,196.67
  6. Step 6: Final answer
    x = 360,648.36

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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.