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Finding the Fourth Proportional to 617,933.20, 926,986.20 and 262,944.40

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Solution

The fourth proportional to 617,933.20, 926,986.20 and 262,944.40 is: 394,453.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,933.20 : 926,986.20 = 262,944.40 : x
  2. Step 2: Convert to fraction form
    617,933.20/926,986.20 = 262,944.40/x
  3. Step 3: Cross multiply
    617,933.20x = 926,986.20 × 262,944.40
  4. Step 4: Simplify right side
    617,933.20x = 243,745,830,167.28
  5. Step 5: Solve for x
    x = 243,745,830,167.28/617,933.20
  6. Step 6: Final answer
    x = 394,453.37

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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.