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Finding the Fourth Proportional to 476,207.67, 657,166.05 and 261,348.30

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Solution

The fourth proportional to 476,207.67, 657,166.05 and 261,348.30 is: 360,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,207.67 : 657,166.05 = 261,348.30 : x
  2. Step 2: Convert to fraction form
    476,207.67/657,166.05 = 261,348.30/x
  3. Step 3: Cross multiply
    476,207.67x = 657,166.05 × 261,348.30
  4. Step 4: Simplify right side
    476,207.67x = 171,749,229,985.22
  5. Step 5: Solve for x
    x = 171,749,229,985.22/476,207.67
  6. Step 6: Final answer
    x = 360,660.36

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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.