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Finding the Fourth Proportional to 1,407,916.82, 1,942,963.47 and 796,161.08

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Solution

The fourth proportional to 1,407,916.82, 1,942,963.47 and 796,161.08 is: 1,098,723.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,916.82 : 1,942,963.47 = 796,161.08 : x
  2. Step 2: Convert to fraction form
    1,407,916.82/1,942,963.47 = 796,161.08/x
  3. Step 3: Cross multiply
    1,407,916.82x = 1,942,963.47 × 796,161.08
  4. Step 4: Simplify right side
    1,407,916.82x = 1,546,911,894,675.75
  5. Step 5: Solve for x
    x = 1,546,911,894,675.75/1,407,916.82
  6. Step 6: Final answer
    x = 1,098,723.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.