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Finding the Fourth Proportional to 933,793.50, 1,399,692.43 and 666,744.40

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Solution

The fourth proportional to 933,793.50, 1,399,692.43 and 666,744.40 is: 999,404.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,793.50 : 1,399,692.43 = 666,744.40 : x
  2. Step 2: Convert to fraction form
    933,793.50/1,399,692.43 = 666,744.40/x
  3. Step 3: Cross multiply
    933,793.50x = 1,399,692.43 × 666,744.40
  4. Step 4: Simplify right side
    933,793.50x = 933,237,089,424.89
  5. Step 5: Solve for x
    x = 933,237,089,424.89/933,793.50
  6. Step 6: Final answer
    x = 999,404.14

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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.