Home / 1,640,390.40-2,459,845.44-693,273.60

Finding the Fourth Proportional to 1,640,390.40, 2,459,845.44 and 693,273.60

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Solution

The fourth proportional to 1,640,390.40, 2,459,845.44 and 693,273.60 is: 1,039,597.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,390.40 : 2,459,845.44 = 693,273.60 : x
  2. Step 2: Convert to fraction form
    1,640,390.40/2,459,845.44 = 693,273.60/x
  3. Step 3: Cross multiply
    1,640,390.40x = 2,459,845.44 × 693,273.60
  4. Step 4: Simplify right side
    1,640,390.40x = 1,705,345,903,632.38
  5. Step 5: Solve for x
    x = 1,705,345,903,632.38/1,640,390.40
  6. Step 6: Final answer
    x = 1,039,597.59

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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.