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Finding the Fourth Proportional to 1,407,965.93, 1,942,981.25 and 796,238.79

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Solution

The fourth proportional to 1,407,965.93, 1,942,981.25 and 796,238.79 is: 1,098,802.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,965.93 : 1,942,981.25 = 796,238.79 : x
  2. Step 2: Convert to fraction form
    1,407,965.93/1,942,981.25 = 796,238.79/x
  3. Step 3: Cross multiply
    1,407,965.93x = 1,942,981.25 × 796,238.79
  4. Step 4: Simplify right side
    1,407,965.93x = 1,547,077,035,511.49
  5. Step 5: Solve for x
    x = 1,547,077,035,511.49/1,407,965.93
  6. Step 6: Final answer
    x = 1,098,802.90

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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.