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Finding the Fourth Proportional to 571,803.84, 789,021.60 and 317,092.80

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Solution

The fourth proportional to 571,803.84, 789,021.60 and 317,092.80 is: 437,550.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,803.84 : 789,021.60 = 317,092.80 : x
  2. Step 2: Convert to fraction form
    571,803.84/789,021.60 = 317,092.80/x
  3. Step 3: Cross multiply
    571,803.84x = 789,021.60 × 317,092.80
  4. Step 4: Simplify right side
    571,803.84x = 250,193,068,404.48
  5. Step 5: Solve for x
    x = 250,193,068,404.48/571,803.84
  6. Step 6: Final answer
    x = 437,550.52

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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.