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Finding the Fourth Proportional to 603,800.66, 833,323.75 and 389,563.97

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Solution

The fourth proportional to 603,800.66, 833,323.75 and 389,563.97 is: 537,649.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,800.66 : 833,323.75 = 389,563.97 : x
  2. Step 2: Convert to fraction form
    603,800.66/833,323.75 = 389,563.97/x
  3. Step 3: Cross multiply
    603,800.66x = 833,323.75 × 389,563.97
  4. Step 4: Simplify right side
    603,800.66x = 324,632,903,204.76
  5. Step 5: Solve for x
    x = 324,632,903,204.76/603,800.66
  6. Step 6: Final answer
    x = 537,649.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.