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Finding the Fourth Proportional to 382,025.20, 573,037.80 and 343,971.40

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Solution

The fourth proportional to 382,025.20, 573,037.80 and 343,971.40 is: 515,957.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,025.20 : 573,037.80 = 343,971.40 : x
  2. Step 2: Convert to fraction form
    382,025.20/573,037.80 = 343,971.40/x
  3. Step 3: Cross multiply
    382,025.20x = 573,037.80 × 343,971.40
  4. Step 4: Simplify right side
    382,025.20x = 197,108,614,318.92
  5. Step 5: Solve for x
    x = 197,108,614,318.92/382,025.20
  6. Step 6: Final answer
    x = 515,957.10

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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.