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Finding the Fourth Proportional to 656,635.69, 985,129.04 and 235,915.21

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Solution

The fourth proportional to 656,635.69, 985,129.04 and 235,915.21 is: 353,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,635.69 : 985,129.04 = 235,915.21 : x
  2. Step 2: Convert to fraction form
    656,635.69/985,129.04 = 235,915.21/x
  3. Step 3: Cross multiply
    656,635.69x = 985,129.04 × 235,915.21
  4. Step 4: Simplify right side
    656,635.69x = 232,406,923,169.12
  5. Step 5: Solve for x
    x = 232,406,923,169.12/656,635.69
  6. Step 6: Final answer
    x = 353,935.87

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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.