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Finding the Fourth Proportional to 514,435.44, 709,919.52 and 284,993.16

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Solution

The fourth proportional to 514,435.44, 709,919.52 and 284,993.16 is: 393,289.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,435.44 : 709,919.52 = 284,993.16 : x
  2. Step 2: Convert to fraction form
    514,435.44/709,919.52 = 284,993.16/x
  3. Step 3: Cross multiply
    514,435.44x = 709,919.52 × 284,993.16
  4. Step 4: Simplify right side
    514,435.44x = 202,322,207,350.48
  5. Step 5: Solve for x
    x = 202,322,207,350.48/514,435.44
  6. Step 6: Final answer
    x = 393,289.79

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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.