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Finding the Fourth Proportional to 488,636.15, 732,442.66 and 204,489.50

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Solution

The fourth proportional to 488,636.15, 732,442.66 and 204,489.50 is: 306,520.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,636.15 : 732,442.66 = 204,489.50 : x
  2. Step 2: Convert to fraction form
    488,636.15/732,442.66 = 204,489.50/x
  3. Step 3: Cross multiply
    488,636.15x = 732,442.66 × 204,489.50
  4. Step 4: Simplify right side
    488,636.15x = 149,776,829,148.63
  5. Step 5: Solve for x
    x = 149,776,829,148.63/488,636.15
  6. Step 6: Final answer
    x = 306,520.16

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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.