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Finding the Fourth Proportional to 258,794.34, 388,486.89 and 173,468.67

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Solution

The fourth proportional to 258,794.34, 388,486.89 and 173,468.67 is: 260,401.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,794.34 : 388,486.89 = 173,468.67 : x
  2. Step 2: Convert to fraction form
    258,794.34/388,486.89 = 173,468.67/x
  3. Step 3: Cross multiply
    258,794.34x = 388,486.89 × 173,468.67
  4. Step 4: Simplify right side
    258,794.34x = 67,390,304,120.74
  5. Step 5: Solve for x
    x = 67,390,304,120.74/258,794.34
  6. Step 6: Final answer
    x = 260,401.00

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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.