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Finding the Fourth Proportional to 634,015.59, 874,963.94 and 347,535.60

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Solution

The fourth proportional to 634,015.59, 874,963.94 and 347,535.60 is: 479,611.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,015.59 : 874,963.94 = 347,535.60 : x
  2. Step 2: Convert to fraction form
    634,015.59/874,963.94 = 347,535.60/x
  3. Step 3: Cross multiply
    634,015.59x = 874,963.94 × 347,535.60
  4. Step 4: Simplify right side
    634,015.59x = 304,081,117,866.26
  5. Step 5: Solve for x
    x = 304,081,117,866.26/634,015.59
  6. Step 6: Final answer
    x = 479,611.42

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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.