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Finding the Fourth Proportional to 343,270.60, 514,905.90 and 329,273.80

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Solution

The fourth proportional to 343,270.60, 514,905.90 and 329,273.80 is: 493,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,270.60 : 514,905.90 = 329,273.80 : x
  2. Step 2: Convert to fraction form
    343,270.60/514,905.90 = 329,273.80/x
  3. Step 3: Cross multiply
    343,270.60x = 514,905.90 × 329,273.80
  4. Step 4: Simplify right side
    343,270.60x = 169,545,022,335.42
  5. Step 5: Solve for x
    x = 169,545,022,335.42/343,270.60
  6. Step 6: Final answer
    x = 493,910.70

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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.