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Finding the Fourth Proportional to 933,600.60, 1,400,400.90 and 709,651.80

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Solution

The fourth proportional to 933,600.60, 1,400,400.90 and 709,651.80 is: 1,064,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,600.60 : 1,400,400.90 = 709,651.80 : x
  2. Step 2: Convert to fraction form
    933,600.60/1,400,400.90 = 709,651.80/x
  3. Step 3: Cross multiply
    933,600.60x = 1,400,400.90 × 709,651.80
  4. Step 4: Simplify right side
    933,600.60x = 993,797,019,406.62
  5. Step 5: Solve for x
    x = 993,797,019,406.62/933,600.60
  6. Step 6: Final answer
    x = 1,064,477.70

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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.