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Finding the Fourth Proportional to 617,499.90, 926,317.98 and 196,678.98

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Solution

The fourth proportional to 617,499.90, 926,317.98 and 196,678.98 is: 295,040.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,499.90 : 926,317.98 = 196,678.98 : x
  2. Step 2: Convert to fraction form
    617,499.90/926,317.98 = 196,678.98/x
  3. Step 3: Cross multiply
    617,499.90x = 926,317.98 × 196,678.98
  4. Step 4: Simplify right side
    617,499.90x = 182,187,275,462.06
  5. Step 5: Solve for x
    x = 182,187,275,462.06/617,499.90
  6. Step 6: Final answer
    x = 295,040.17

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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.