Home / 886,857.60-1,330,286.40-620,918.40

Finding the Fourth Proportional to 886,857.60, 1,330,286.40 and 620,918.40

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Solution

The fourth proportional to 886,857.60, 1,330,286.40 and 620,918.40 is: 931,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,857.60 : 1,330,286.40 = 620,918.40 : x
  2. Step 2: Convert to fraction form
    886,857.60/1,330,286.40 = 620,918.40/x
  3. Step 3: Cross multiply
    886,857.60x = 1,330,286.40 × 620,918.40
  4. Step 4: Simplify right side
    886,857.60x = 825,999,303,029.76
  5. Step 5: Solve for x
    x = 825,999,303,029.76/886,857.60
  6. Step 6: Final answer
    x = 931,377.60

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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.