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Finding the Fourth Proportional to 313,283.46, 432,331.21 and 170,043.47

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Solution

The fourth proportional to 313,283.46, 432,331.21 and 170,043.47 is: 234,660.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,283.46 : 432,331.21 = 170,043.47 : x
  2. Step 2: Convert to fraction form
    313,283.46/432,331.21 = 170,043.47/x
  3. Step 3: Cross multiply
    313,283.46x = 432,331.21 × 170,043.47
  4. Step 4: Simplify right side
    313,283.46x = 73,515,099,137.70
  5. Step 5: Solve for x
    x = 73,515,099,137.70/313,283.46
  6. Step 6: Final answer
    x = 234,660.01

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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.