Home / 817,611.78-1,129,584.03-624,694.68

Finding the Fourth Proportional to 817,611.78, 1,129,584.03 and 624,694.68

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Solution

The fourth proportional to 817,611.78, 1,129,584.03 and 624,694.68 is: 863,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,611.78 : 1,129,584.03 = 624,694.68 : x
  2. Step 2: Convert to fraction form
    817,611.78/1,129,584.03 = 624,694.68/x
  3. Step 3: Cross multiply
    817,611.78x = 1,129,584.03 × 624,694.68
  4. Step 4: Simplify right side
    817,611.78x = 705,645,134,153.96
  5. Step 5: Solve for x
    x = 705,645,134,153.96/817,611.78
  6. Step 6: Final answer
    x = 863,056.47

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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.