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Finding the Fourth Proportional to 567,993.68, 783,833.48 and 309,876.42

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Solution

The fourth proportional to 567,993.68, 783,833.48 and 309,876.42 is: 427,630.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,993.68 : 783,833.48 = 309,876.42 : x
  2. Step 2: Convert to fraction form
    567,993.68/783,833.48 = 309,876.42/x
  3. Step 3: Cross multiply
    567,993.68x = 783,833.48 × 309,876.42
  4. Step 4: Simplify right side
    567,993.68x = 242,891,515,210.57
  5. Step 5: Solve for x
    x = 242,891,515,210.57/567,993.68
  6. Step 6: Final answer
    x = 427,630.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.