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Finding the Fourth Proportional to 544,544.92, 751,361.82 and 318,146.68

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Solution

The fourth proportional to 544,544.92, 751,361.82 and 318,146.68 is: 438,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,544.92 : 751,361.82 = 318,146.68 : x
  2. Step 2: Convert to fraction form
    544,544.92/751,361.82 = 318,146.68/x
  3. Step 3: Cross multiply
    544,544.92x = 751,361.82 × 318,146.68
  4. Step 4: Simplify right side
    544,544.92x = 239,043,268,511.76
  5. Step 5: Solve for x
    x = 239,043,268,511.76/544,544.92
  6. Step 6: Final answer
    x = 438,978.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.