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Finding the Fourth Proportional to 475,436.75, 656,072.96 and 260,561.57

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Solution

The fourth proportional to 475,436.75, 656,072.96 and 260,561.57 is: 359,558.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,436.75 : 656,072.96 = 260,561.57 : x
  2. Step 2: Convert to fraction form
    475,436.75/656,072.96 = 260,561.57/x
  3. Step 3: Cross multiply
    475,436.75x = 656,072.96 × 260,561.57
  4. Step 4: Simplify right side
    475,436.75x = 170,947,395,908.98
  5. Step 5: Solve for x
    x = 170,947,395,908.98/475,436.75
  6. Step 6: Final answer
    x = 359,558.65

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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.