Home / 1,379,511.57-2,069,243.25-620,816.16

Finding the Fourth Proportional to 1,379,511.57, 2,069,243.25 and 620,816.16

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Solution

The fourth proportional to 1,379,511.57, 2,069,243.25 and 620,816.16 is: 931,213.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,511.57 : 2,069,243.25 = 620,816.16 : x
  2. Step 2: Convert to fraction form
    1,379,511.57/2,069,243.25 = 620,816.16/x
  3. Step 3: Cross multiply
    1,379,511.57x = 2,069,243.25 × 620,816.16
  4. Step 4: Simplify right side
    1,379,511.57x = 1,284,619,648,570.92
  5. Step 5: Solve for x
    x = 1,284,619,648,570.92/1,379,511.57
  6. Step 6: Final answer
    x = 931,213.39

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Double scale
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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.