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Finding the Fourth Proportional to 587,516.80, 881,505.60 and 213,577.60

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Solution

The fourth proportional to 587,516.80, 881,505.60 and 213,577.60 is: 320,450.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,516.80 : 881,505.60 = 213,577.60 : x
  2. Step 2: Convert to fraction form
    587,516.80/881,505.60 = 213,577.60/x
  3. Step 3: Cross multiply
    587,516.80x = 881,505.60 × 213,577.60
  4. Step 4: Simplify right side
    587,516.80x = 188,269,850,434.56
  5. Step 5: Solve for x
    x = 188,269,850,434.56/587,516.80
  6. Step 6: Final answer
    x = 320,450.16

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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.