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Finding the Fourth Proportional to 554,892.15, 831,838.64 and 199,656.38

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Solution

The fourth proportional to 554,892.15, 831,838.64 and 199,656.38 is: 299,304.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,892.15 : 831,838.64 = 199,656.38 : x
  2. Step 2: Convert to fraction form
    554,892.15/831,838.64 = 199,656.38/x
  3. Step 3: Cross multiply
    554,892.15x = 831,838.64 × 199,656.38
  4. Step 4: Simplify right side
    554,892.15x = 166,081,886,449.05
  5. Step 5: Solve for x
    x = 166,081,886,449.05/554,892.15
  6. Step 6: Final answer
    x = 299,304.80

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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.