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Finding the Fourth Proportional to 571,852.74, 789,182.55 and 317,203.86

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Solution

The fourth proportional to 571,852.74, 789,182.55 and 317,203.86 is: 437,755.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,852.74 : 789,182.55 = 317,203.86 : x
  2. Step 2: Convert to fraction form
    571,852.74/789,182.55 = 317,203.86/x
  3. Step 3: Cross multiply
    571,852.74x = 789,182.55 × 317,203.86
  4. Step 4: Simplify right side
    571,852.74x = 250,331,751,104.64
  5. Step 5: Solve for x
    x = 250,331,751,104.64/571,852.74
  6. Step 6: Final answer
    x = 437,755.62

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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.