Home / 1,161,993.81-1,603,302.70-678,339.44

Finding the Fourth Proportional to 1,161,993.81, 1,603,302.70 and 678,339.44

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Solution

The fourth proportional to 1,161,993.81, 1,603,302.70 and 678,339.44 is: 935,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,993.81 : 1,603,302.70 = 678,339.44 : x
  2. Step 2: Convert to fraction form
    1,161,993.81/1,603,302.70 = 678,339.44/x
  3. Step 3: Cross multiply
    1,161,993.81x = 1,603,302.70 × 678,339.44
  4. Step 4: Simplify right side
    1,161,993.81x = 1,087,583,455,668.49
  5. Step 5: Solve for x
    x = 1,087,583,455,668.49/1,161,993.81
  6. Step 6: Final answer
    x = 935,963.21

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Double scale
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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.