Home / 1,178,370-1,626,150.60-641,826

Finding the Fourth Proportional to 1,178,370, 1,626,150.60 and 641,826

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Solution

The fourth proportional to 1,178,370, 1,626,150.60 and 641,826 is: 885,719.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,370 : 1,626,150.60 = 641,826 : x
  2. Step 2: Convert to fraction form
    1,178,370/1,626,150.60 = 641,826/x
  3. Step 3: Cross multiply
    1,178,370x = 1,626,150.60 × 641,826
  4. Step 4: Simplify right side
    1,178,370x = 1,043,705,734,995.60
  5. Step 5: Solve for x
    x = 1,043,705,734,995.60/1,178,370
  6. Step 6: Final answer
    x = 885,719.88

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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.