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Finding the Fourth Proportional to 313,272.92, 432,305.05 and 170,029.89

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Solution

The fourth proportional to 313,272.92, 432,305.05 and 170,029.89 is: 234,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,272.92 : 432,305.05 = 170,029.89 : x
  2. Step 2: Convert to fraction form
    313,272.92/432,305.05 = 170,029.89/x
  3. Step 3: Cross multiply
    313,272.92x = 432,305.05 × 170,029.89
  4. Step 4: Simplify right side
    313,272.92x = 73,504,779,247.80
  5. Step 5: Solve for x
    x = 73,504,779,247.80/313,272.92
  6. Step 6: Final answer
    x = 234,634.96

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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.