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Finding the Fourth Proportional to 617,552.70, 926,415.45 and 262,563.90

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Solution

The fourth proportional to 617,552.70, 926,415.45 and 262,563.90 is: 393,882.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,552.70 : 926,415.45 = 262,563.90 : x
  2. Step 2: Convert to fraction form
    617,552.70/926,415.45 = 262,563.90/x
  3. Step 3: Cross multiply
    617,552.70x = 926,415.45 × 262,563.90
  4. Step 4: Simplify right side
    617,552.70x = 243,243,253,572.26
  5. Step 5: Solve for x
    x = 243,243,253,572.26/617,552.70
  6. Step 6: Final answer
    x = 393,882.58

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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.