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Finding the Fourth Proportional to 627,617.36, 866,090.76 and 359,293.52

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Solution

The fourth proportional to 627,617.36, 866,090.76 and 359,293.52 is: 495,812.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,617.36 : 866,090.76 = 359,293.52 : x
  2. Step 2: Convert to fraction form
    627,617.36/866,090.76 = 359,293.52/x
  3. Step 3: Cross multiply
    627,617.36x = 866,090.76 × 359,293.52
  4. Step 4: Simplify right side
    627,617.36x = 311,180,797,799.88
  5. Step 5: Solve for x
    x = 311,180,797,799.88/627,617.36
  6. Step 6: Final answer
    x = 495,812.92

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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.