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Finding the Fourth Proportional to 579,762.12, 869,634.54 and 200,958.60

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Solution

The fourth proportional to 579,762.12, 869,634.54 and 200,958.60 is: 301,434.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,762.12 : 869,634.54 = 200,958.60 : x
  2. Step 2: Convert to fraction form
    579,762.12/869,634.54 = 200,958.60/x
  3. Step 3: Cross multiply
    579,762.12x = 869,634.54 × 200,958.60
  4. Step 4: Simplify right side
    579,762.12x = 174,760,543,684.77
  5. Step 5: Solve for x
    x = 174,760,543,684.77/579,762.12
  6. Step 6: Final answer
    x = 301,434.91

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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.