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Finding the Fourth Proportional to 617,647.62, 926,737.72 and 238,835.06

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Solution

The fourth proportional to 617,647.62, 926,737.72 and 238,835.06 is: 358,355.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,647.62 : 926,737.72 = 238,835.06 : x
  2. Step 2: Convert to fraction form
    617,647.62/926,737.72 = 238,835.06/x
  3. Step 3: Cross multiply
    617,647.62x = 926,737.72 × 238,835.06
  4. Step 4: Simplify right side
    617,647.62x = 221,337,453,729.69
  5. Step 5: Solve for x
    x = 221,337,453,729.69/617,647.62
  6. Step 6: Final answer
    x = 358,355.55

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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.