Home / 689,365.44-1,034,046.72-190,728

Finding the Fourth Proportional to 689,365.44, 1,034,046.72 and 190,728

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Solution

The fourth proportional to 689,365.44, 1,034,046.72 and 190,728 is: 286,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,365.44 : 1,034,046.72 = 190,728 : x
  2. Step 2: Convert to fraction form
    689,365.44/1,034,046.72 = 190,728/x
  3. Step 3: Cross multiply
    689,365.44x = 1,034,046.72 × 190,728
  4. Step 4: Simplify right side
    689,365.44x = 197,221,662,812.16
  5. Step 5: Solve for x
    x = 197,221,662,812.16/689,365.44
  6. Step 6: Final answer
    x = 286,091.60

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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.