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Finding the Fourth Proportional to 617,218.75, 926,221.77 and 262,232.78

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Solution

The fourth proportional to 617,218.75, 926,221.77 and 262,232.78 is: 393,516.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,218.75 : 926,221.77 = 262,232.78 : x
  2. Step 2: Convert to fraction form
    617,218.75/926,221.77 = 262,232.78/x
  3. Step 3: Cross multiply
    617,218.75x = 926,221.77 × 262,232.78
  4. Step 4: Simplify right side
    617,218.75x = 242,885,705,012.51
  5. Step 5: Solve for x
    x = 242,885,705,012.51/617,218.75
  6. Step 6: Final answer
    x = 393,516.41

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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.