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Finding the Fourth Proportional to 351,698.80, 526,554.60 and 273,722.80

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Solution

The fourth proportional to 351,698.80, 526,554.60 and 273,722.80 is: 409,810.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,698.80 : 526,554.60 = 273,722.80 : x
  2. Step 2: Convert to fraction form
    351,698.80/526,554.60 = 273,722.80/x
  3. Step 3: Cross multiply
    351,698.80x = 526,554.60 × 273,722.80
  4. Step 4: Simplify right side
    351,698.80x = 144,129,999,464.88
  5. Step 5: Solve for x
    x = 144,129,999,464.88/351,698.80
  6. Step 6: Final answer
    x = 409,810.89

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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.