Home / 879,974.65-1,214,189.37-535,579.90

Finding the Fourth Proportional to 879,974.65, 1,214,189.37 and 535,579.90

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Solution

The fourth proportional to 879,974.65, 1,214,189.37 and 535,579.90 is: 738,993.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,974.65 : 1,214,189.37 = 535,579.90 : x
  2. Step 2: Convert to fraction form
    879,974.65/1,214,189.37 = 535,579.90/x
  3. Step 3: Cross multiply
    879,974.65x = 1,214,189.37 × 535,579.90
  4. Step 4: Simplify right side
    879,974.65x = 650,295,416,823.87
  5. Step 5: Solve for x
    x = 650,295,416,823.87/879,974.65
  6. Step 6: Final answer
    x = 738,993.36

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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.