Home / 1,090,603.81-1,636,653.00-380,631.85

Finding the Fourth Proportional to 1,090,603.81, 1,636,653.00 and 380,631.85

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Solution

The fourth proportional to 1,090,603.81, 1,636,653.00 and 380,631.85 is: 571,208.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,603.81 : 1,636,653.00 = 380,631.85 : x
  2. Step 2: Convert to fraction form
    1,090,603.81/1,636,653.00 = 380,631.85/x
  3. Step 3: Cross multiply
    1,090,603.81x = 1,636,653.00 × 380,631.85
  4. Step 4: Simplify right side
    1,090,603.81x = 622,962,265,739.96
  5. Step 5: Solve for x
    x = 622,962,265,739.96/1,090,603.81
  6. Step 6: Final answer
    x = 571,208.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.