Home / 1,511,509.53-2,085,728.94-930,640.53

Finding the Fourth Proportional to 1,511,509.53, 2,085,728.94 and 930,640.53

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Solution

The fourth proportional to 1,511,509.53, 2,085,728.94 and 930,640.53 is: 1,284,188.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,509.53 : 2,085,728.94 = 930,640.53 : x
  2. Step 2: Convert to fraction form
    1,511,509.53/2,085,728.94 = 930,640.53/x
  3. Step 3: Cross multiply
    1,511,509.53x = 2,085,728.94 × 930,640.53
  4. Step 4: Simplify right side
    1,511,509.53x = 1,941,063,886,157.94
  5. Step 5: Solve for x
    x = 1,941,063,886,157.94/1,511,509.53
  6. Step 6: Final answer
    x = 1,284,188.98

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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.