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Finding the Fourth Proportional to 524,239.83, 722,970.90 and 388,611.54

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Solution

The fourth proportional to 524,239.83, 722,970.90 and 388,611.54 is: 535,928.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,239.83 : 722,970.90 = 388,611.54 : x
  2. Step 2: Convert to fraction form
    524,239.83/722,970.90 = 388,611.54/x
  3. Step 3: Cross multiply
    524,239.83x = 722,970.90 × 388,611.54
  4. Step 4: Simplify right side
    524,239.83x = 280,954,834,824.19
  5. Step 5: Solve for x
    x = 280,954,834,824.19/524,239.83
  6. Step 6: Final answer
    x = 535,928.06

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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.