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Finding the Fourth Proportional to 214,910.70, 322,710.30 and 170,903.40

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Solution

The fourth proportional to 214,910.70, 322,710.30 and 170,903.40 is: 256,628.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,910.70 : 322,710.30 = 170,903.40 : x
  2. Step 2: Convert to fraction form
    214,910.70/322,710.30 = 170,903.40/x
  3. Step 3: Cross multiply
    214,910.70x = 322,710.30 × 170,903.40
  4. Step 4: Simplify right side
    214,910.70x = 55,152,287,485.02
  5. Step 5: Solve for x
    x = 55,152,287,485.02/214,910.70
  6. Step 6: Final answer
    x = 256,628.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.