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Finding the Fourth Proportional to 523,930.60, 785,435.10 and 313,652.20

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Solution

The fourth proportional to 523,930.60, 785,435.10 and 313,652.20 is: 470,202.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,930.60 : 785,435.10 = 313,652.20 : x
  2. Step 2: Convert to fraction form
    523,930.60/785,435.10 = 313,652.20/x
  3. Step 3: Cross multiply
    523,930.60x = 785,435.10 × 313,652.20
  4. Step 4: Simplify right side
    523,930.60x = 246,353,447,072.22
  5. Step 5: Solve for x
    x = 246,353,447,072.22/523,930.60
  6. Step 6: Final answer
    x = 470,202.44

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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.