Home / 886,627.20-1,329,940.80-800,918.40

Finding the Fourth Proportional to 886,627.20, 1,329,940.80 and 800,918.40

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Solution

The fourth proportional to 886,627.20, 1,329,940.80 and 800,918.40 is: 1,201,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,627.20 : 1,329,940.80 = 800,918.40 : x
  2. Step 2: Convert to fraction form
    886,627.20/1,329,940.80 = 800,918.40/x
  3. Step 3: Cross multiply
    886,627.20x = 1,329,940.80 × 800,918.40
  4. Step 4: Simplify right side
    886,627.20x = 1,065,174,057,630.72
  5. Step 5: Solve for x
    x = 1,065,174,057,630.72/886,627.20
  6. Step 6: Final answer
    x = 1,201,377.60

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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.