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Finding the Fourth Proportional to 617,860.70, 925,118.43 and 437,203.57

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Solution

The fourth proportional to 617,860.70, 925,118.43 and 437,203.57 is: 654,621.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,860.70 : 925,118.43 = 437,203.57 : x
  2. Step 2: Convert to fraction form
    617,860.70/925,118.43 = 437,203.57/x
  3. Step 3: Cross multiply
    617,860.70x = 925,118.43 × 437,203.57
  4. Step 4: Simplify right side
    617,860.70x = 404,465,080,268.80
  5. Step 5: Solve for x
    x = 404,465,080,268.80/617,860.70
  6. Step 6: Final answer
    x = 654,621.79

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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.