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Finding the Fourth Proportional to 331,361.20, 497,041.80 and 295,418.80

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Solution

The fourth proportional to 331,361.20, 497,041.80 and 295,418.80 is: 443,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,361.20 : 497,041.80 = 295,418.80 : x
  2. Step 2: Convert to fraction form
    331,361.20/497,041.80 = 295,418.80/x
  3. Step 3: Cross multiply
    331,361.20x = 497,041.80 × 295,418.80
  4. Step 4: Simplify right side
    331,361.20x = 146,835,492,105.84
  5. Step 5: Solve for x
    x = 146,835,492,105.84/331,361.20
  6. Step 6: Final answer
    x = 443,128.20

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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.