Home / 627,724.85-866,256.67-355,844.03

Finding the Fourth Proportional to 627,724.85, 866,256.67 and 355,844.03

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Solution

The fourth proportional to 627,724.85, 866,256.67 and 355,844.03 is: 491,062.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,724.85 : 866,256.67 = 355,844.03 : x
  2. Step 2: Convert to fraction form
    627,724.85/866,256.67 = 355,844.03/x
  3. Step 3: Cross multiply
    627,724.85x = 866,256.67 × 355,844.03
  4. Step 4: Simplify right side
    627,724.85x = 308,252,264,467.18
  5. Step 5: Solve for x
    x = 308,252,264,467.18/627,724.85
  6. Step 6: Final answer
    x = 491,062.71

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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.