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Finding the Fourth Proportional to 358,308.60, 537,462.90 and 200,516.55

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Solution

The fourth proportional to 358,308.60, 537,462.90 and 200,516.55 is: 300,774.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,308.60 : 537,462.90 = 200,516.55 : x
  2. Step 2: Convert to fraction form
    358,308.60/537,462.90 = 200,516.55/x
  3. Step 3: Cross multiply
    358,308.60x = 537,462.90 × 200,516.55
  4. Step 4: Simplify right side
    358,308.60x = 107,770,206,461.00
  5. Step 5: Solve for x
    x = 107,770,206,461.00/358,308.60
  6. Step 6: Final answer
    x = 300,774.83

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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.