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Finding the Fourth Proportional to 352,425.85, 528,638.78 and 246,137.65

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Solution

The fourth proportional to 352,425.85, 528,638.78 and 246,137.65 is: 369,206.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,425.85 : 528,638.78 = 246,137.65 : x
  2. Step 2: Convert to fraction form
    352,425.85/528,638.78 = 246,137.65/x
  3. Step 3: Cross multiply
    352,425.85x = 528,638.78 × 246,137.65
  4. Step 4: Simplify right side
    352,425.85x = 130,117,905,777.38
  5. Step 5: Solve for x
    x = 130,117,905,777.38/352,425.85
  6. Step 6: Final answer
    x = 369,206.48

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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.