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Finding the Fourth Proportional to 662,358.60, 993,051.90 and 262,801.80

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Solution

The fourth proportional to 662,358.60, 993,051.90 and 262,801.80 is: 394,009.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,358.60 : 993,051.90 = 262,801.80 : x
  2. Step 2: Convert to fraction form
    662,358.60/993,051.90 = 262,801.80/x
  3. Step 3: Cross multiply
    662,358.60x = 993,051.90 × 262,801.80
  4. Step 4: Simplify right side
    662,358.60x = 260,975,826,813.42
  5. Step 5: Solve for x
    x = 260,975,826,813.42/662,358.60
  6. Step 6: Final answer
    x = 394,009.87

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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.