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Finding the Fourth Proportional to 554,558.98, 831,838.62 and 155,258.57

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Solution

The fourth proportional to 554,558.98, 831,838.62 and 155,258.57 is: 232,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,558.98 : 831,838.62 = 155,258.57 : x
  2. Step 2: Convert to fraction form
    554,558.98/831,838.62 = 155,258.57/x
  3. Step 3: Cross multiply
    554,558.98x = 831,838.62 × 155,258.57
  4. Step 4: Simplify right side
    554,558.98x = 129,150,074,611.97
  5. Step 5: Solve for x
    x = 129,150,074,611.97/554,558.98
  6. Step 6: Final answer
    x = 232,887.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.