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Finding the Fourth Proportional to 526,109.78, 725,554.87 and 344,755.85

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Solution

The fourth proportional to 526,109.78, 725,554.87 and 344,755.85 is: 475,450.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,109.78 : 725,554.87 = 344,755.85 : x
  2. Step 2: Convert to fraction form
    526,109.78/725,554.87 = 344,755.85/x
  3. Step 3: Cross multiply
    526,109.78x = 725,554.87 × 344,755.85
  4. Step 4: Simplify right side
    526,109.78x = 250,139,281,438.83
  5. Step 5: Solve for x
    x = 250,139,281,438.83/526,109.78
  6. Step 6: Final answer
    x = 475,450.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.