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Finding the Fourth Proportional to 331,361.10, 497,041.65 and 305,700.30

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Solution

The fourth proportional to 331,361.10, 497,041.65 and 305,700.30 is: 458,550.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,361.10 : 497,041.65 = 305,700.30 : x
  2. Step 2: Convert to fraction form
    331,361.10/497,041.65 = 305,700.30/x
  3. Step 3: Cross multiply
    331,361.10x = 497,041.65 × 305,700.30
  4. Step 4: Simplify right side
    331,361.10x = 151,945,781,517.50
  5. Step 5: Solve for x
    x = 151,945,781,517.50/331,361.10
  6. Step 6: Final answer
    x = 458,550.45

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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.