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Finding the Fourth Proportional to 617,087.80, 925,977.30 and 262,041.40

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Solution

The fourth proportional to 617,087.80, 925,977.30 and 262,041.40 is: 393,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,087.80 : 925,977.30 = 262,041.40 : x
  2. Step 2: Convert to fraction form
    617,087.80/925,977.30 = 262,041.40/x
  3. Step 3: Cross multiply
    617,087.80x = 925,977.30 × 262,041.40
  4. Step 4: Simplify right side
    617,087.80x = 242,644,388,060.22
  5. Step 5: Solve for x
    x = 242,644,388,060.22/617,087.80
  6. Step 6: Final answer
    x = 393,208.86

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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.