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Finding the Fourth Proportional to 884,368.80, 1,326,553.20 and 831,880.80

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Solution

The fourth proportional to 884,368.80, 1,326,553.20 and 831,880.80 is: 1,247,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,368.80 : 1,326,553.20 = 831,880.80 : x
  2. Step 2: Convert to fraction form
    884,368.80/1,326,553.20 = 831,880.80/x
  3. Step 3: Cross multiply
    884,368.80x = 1,326,553.20 × 831,880.80
  4. Step 4: Simplify right side
    884,368.80x = 1,103,534,137,258.56
  5. Step 5: Solve for x
    x = 1,103,534,137,258.56/884,368.80
  6. Step 6: Final answer
    x = 1,247,821.20

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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.