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Finding the Fourth Proportional to 554,263.60, 831,395.40 and 199,083.87

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Solution

The fourth proportional to 554,263.60, 831,395.40 and 199,083.87 is: 298,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,263.60 : 831,395.40 = 199,083.87 : x
  2. Step 2: Convert to fraction form
    554,263.60/831,395.40 = 199,083.87/x
  3. Step 3: Cross multiply
    554,263.60x = 831,395.40 × 199,083.87
  4. Step 4: Simplify right side
    554,263.60x = 165,517,411,361.03
  5. Step 5: Solve for x
    x = 165,517,411,361.03/554,263.60
  6. Step 6: Final answer
    x = 298,625.80

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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.