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Finding the Fourth Proportional to 351,409.62, 484,944.57 and 190,264.80

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Solution

The fourth proportional to 351,409.62, 484,944.57 and 190,264.80 is: 262,565.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,409.62 : 484,944.57 = 190,264.80 : x
  2. Step 2: Convert to fraction form
    351,409.62/484,944.57 = 190,264.80/x
  3. Step 3: Cross multiply
    351,409.62x = 484,944.57 × 190,264.80
  4. Step 4: Simplify right side
    351,409.62x = 92,267,881,622.14
  5. Step 5: Solve for x
    x = 92,267,881,622.14/351,409.62
  6. Step 6: Final answer
    x = 262,565.04

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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.