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Finding the Fourth Proportional to 367,091.10, 550,636.65 and 328,599.90

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Solution

The fourth proportional to 367,091.10, 550,636.65 and 328,599.90 is: 492,899.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,091.10 : 550,636.65 = 328,599.90 : x
  2. Step 2: Convert to fraction form
    367,091.10/550,636.65 = 328,599.90/x
  3. Step 3: Cross multiply
    367,091.10x = 550,636.65 × 328,599.90
  4. Step 4: Simplify right side
    367,091.10x = 180,939,148,126.34
  5. Step 5: Solve for x
    x = 180,939,148,126.34/367,091.10
  6. Step 6: Final answer
    x = 492,899.85

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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.