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Finding the Fourth Proportional to 569,765.10, 786,517.94 and 355,011.27

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Solution

The fourth proportional to 569,765.10, 786,517.94 and 355,011.27 is: 490,066.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,765.10 : 786,517.94 = 355,011.27 : x
  2. Step 2: Convert to fraction form
    569,765.10/786,517.94 = 355,011.27/x
  3. Step 3: Cross multiply
    569,765.10x = 786,517.94 × 355,011.27
  4. Step 4: Simplify right side
    569,765.10x = 279,222,735,611.01
  5. Step 5: Solve for x
    x = 279,222,735,611.01/569,765.10
  6. Step 6: Final answer
    x = 490,066.41

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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.