Home / 1,076,042.94-1,485,116.79-820,912.38

Finding the Fourth Proportional to 1,076,042.94, 1,485,116.79 and 820,912.38

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Solution

The fourth proportional to 1,076,042.94, 1,485,116.79 and 820,912.38 is: 1,132,994.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,042.94 : 1,485,116.79 = 820,912.38 : x
  2. Step 2: Convert to fraction form
    1,076,042.94/1,485,116.79 = 820,912.38/x
  3. Step 3: Cross multiply
    1,076,042.94x = 1,485,116.79 × 820,912.38
  4. Step 4: Simplify right side
    1,076,042.94x = 1,219,150,758,656.86
  5. Step 5: Solve for x
    x = 1,219,150,758,656.86/1,076,042.94
  6. Step 6: Final answer
    x = 1,132,994.52

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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.