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Finding the Fourth Proportional to 984,820.86, 1,477,230.78 and 760,508.37

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Solution

The fourth proportional to 984,820.86, 1,477,230.78 and 760,508.37 is: 1,140,762.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,820.86 : 1,477,230.78 = 760,508.37 : x
  2. Step 2: Convert to fraction form
    984,820.86/1,477,230.78 = 760,508.37/x
  3. Step 3: Cross multiply
    984,820.86x = 1,477,230.78 × 760,508.37
  4. Step 4: Simplify right side
    984,820.86x = 1,123,446,372,611.63
  5. Step 5: Solve for x
    x = 1,123,446,372,611.63/984,820.86
  6. Step 6: Final answer
    x = 1,140,762.16

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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.