Home / 1,728,386.76-2,384,817.63-993,198.90

Finding the Fourth Proportional to 1,728,386.76, 2,384,817.63 and 993,198.90

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Solution

The fourth proportional to 1,728,386.76, 2,384,817.63 and 993,198.90 is: 1,370,409.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,386.76 : 2,384,817.63 = 993,198.90 : x
  2. Step 2: Convert to fraction form
    1,728,386.76/2,384,817.63 = 993,198.90/x
  3. Step 3: Cross multiply
    1,728,386.76x = 2,384,817.63 × 993,198.90
  4. Step 4: Simplify right side
    1,728,386.76x = 2,368,598,246,816.61
  5. Step 5: Solve for x
    x = 2,368,598,246,816.61/1,728,386.76
  6. Step 6: Final answer
    x = 1,370,409.85

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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.