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Finding the Fourth Proportional to 363,858.64, 543,229.59 and 278,020.26

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Solution

The fourth proportional to 363,858.64, 543,229.59 and 278,020.26 is: 415,075.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,858.64 : 543,229.59 = 278,020.26 : x
  2. Step 2: Convert to fraction form
    363,858.64/543,229.59 = 278,020.26/x
  3. Step 3: Cross multiply
    363,858.64x = 543,229.59 × 278,020.26
  4. Step 4: Simplify right side
    363,858.64x = 151,028,831,851.49
  5. Step 5: Solve for x
    x = 151,028,831,851.49/363,858.64
  6. Step 6: Final answer
    x = 415,075.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.