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Finding the Fourth Proportional to 300,731.61, 415,009.35 and 164,774.04

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Solution

The fourth proportional to 300,731.61, 415,009.35 and 164,774.04 is: 227,388.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,731.61 : 415,009.35 = 164,774.04 : x
  2. Step 2: Convert to fraction form
    300,731.61/415,009.35 = 164,774.04/x
  3. Step 3: Cross multiply
    300,731.61x = 415,009.35 × 164,774.04
  4. Step 4: Simplify right side
    300,731.61x = 68,382,767,237.27
  5. Step 5: Solve for x
    x = 68,382,767,237.27/300,731.61
  6. Step 6: Final answer
    x = 227,388.03

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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.