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Finding the Fourth Proportional to 433,642.53, 650,186.37 and 208,554.69

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Solution

The fourth proportional to 433,642.53, 650,186.37 and 208,554.69 is: 312,698.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,642.53 : 650,186.37 = 208,554.69 : x
  2. Step 2: Convert to fraction form
    433,642.53/650,186.37 = 208,554.69/x
  3. Step 3: Cross multiply
    433,642.53x = 650,186.37 × 208,554.69
  4. Step 4: Simplify right side
    433,642.53x = 135,599,416,837.58
  5. Step 5: Solve for x
    x = 135,599,416,837.58/433,642.53
  6. Step 6: Final answer
    x = 312,698.61

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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.