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Finding the Fourth Proportional to 313,500.91, 432,633.80 and 170,261.98

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Solution

The fourth proportional to 313,500.91, 432,633.80 and 170,261.98 is: 234,962.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,500.91 : 432,633.80 = 170,261.98 : x
  2. Step 2: Convert to fraction form
    313,500.91/432,633.80 = 170,261.98/x
  3. Step 3: Cross multiply
    313,500.91x = 432,633.80 × 170,261.98
  4. Step 4: Simplify right side
    313,500.91x = 73,661,085,470.03
  5. Step 5: Solve for x
    x = 73,661,085,470.03/313,500.91
  6. Step 6: Final answer
    x = 234,962.91

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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.