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Finding the Fourth Proportional to 554,054.91, 831,150.41 and 189,376.85

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Solution

The fourth proportional to 554,054.91, 831,150.41 and 189,376.85 is: 284,088.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,054.91 : 831,150.41 = 189,376.85 : x
  2. Step 2: Convert to fraction form
    554,054.91/831,150.41 = 189,376.85/x
  3. Step 3: Cross multiply
    554,054.91x = 831,150.41 × 189,376.85
  4. Step 4: Simplify right side
    554,054.91x = 157,400,646,311.59
  5. Step 5: Solve for x
    x = 157,400,646,311.59/554,054.91
  6. Step 6: Final answer
    x = 284,088.53

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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.