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Finding the Fourth Proportional to 303,676.90, 455,504.55 and 137,464.90

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Solution

The fourth proportional to 303,676.90, 455,504.55 and 137,464.90 is: 206,192.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,676.90 : 455,504.55 = 137,464.90 : x
  2. Step 2: Convert to fraction form
    303,676.90/455,504.55 = 137,464.90/x
  3. Step 3: Cross multiply
    303,676.90x = 455,504.55 × 137,464.90
  4. Step 4: Simplify right side
    303,676.90x = 62,615,887,415.30
  5. Step 5: Solve for x
    x = 62,615,887,415.30/303,676.90
  6. Step 6: Final answer
    x = 206,192.46

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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.