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Finding the Fourth Proportional to 300,775.72, 415,070.59 and 164,808.56

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Solution

The fourth proportional to 300,775.72, 415,070.59 and 164,808.56 is: 227,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,775.72 : 415,070.59 = 164,808.56 : x
  2. Step 2: Convert to fraction form
    300,775.72/415,070.59 = 164,808.56/x
  3. Step 3: Cross multiply
    300,775.72x = 415,070.59 × 164,808.56
  4. Step 4: Simplify right side
    300,775.72x = 68,407,186,236.25
  5. Step 5: Solve for x
    x = 68,407,186,236.25/300,775.72
  6. Step 6: Final answer
    x = 227,435.87

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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.