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Finding the Fourth Proportional to 662,477.60, 993,230.40 and 262,920.80

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Solution

The fourth proportional to 662,477.60, 993,230.40 and 262,920.80 is: 394,188.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,477.60 : 993,230.40 = 262,920.80 : x
  2. Step 2: Convert to fraction form
    662,477.60/993,230.40 = 262,920.80/x
  3. Step 3: Cross multiply
    662,477.60x = 993,230.40 × 262,920.80
  4. Step 4: Simplify right side
    662,477.60x = 261,140,931,352.32
  5. Step 5: Solve for x
    x = 261,140,931,352.32/662,477.60
  6. Step 6: Final answer
    x = 394,188.32

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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.