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Finding the Fourth Proportional to 993,893.60, 1,490,840.40 and 886,066.40

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Solution

The fourth proportional to 993,893.60, 1,490,840.40 and 886,066.40 is: 1,329,099.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,893.60 : 1,490,840.40 = 886,066.40 : x
  2. Step 2: Convert to fraction form
    993,893.60/1,490,840.40 = 886,066.40/x
  3. Step 3: Cross multiply
    993,893.60x = 1,490,840.40 × 886,066.40
  4. Step 4: Simplify right side
    993,893.60x = 1,320,983,586,202.56
  5. Step 5: Solve for x
    x = 1,320,983,586,202.56/993,893.60
  6. Step 6: Final answer
    x = 1,329,099.60

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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.