Home / 1,112,405.39-1,535,076.82-628,980.65

Finding the Fourth Proportional to 1,112,405.39, 1,535,076.82 and 628,980.65

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Solution

The fourth proportional to 1,112,405.39, 1,535,076.82 and 628,980.65 is: 867,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,405.39 : 1,535,076.82 = 628,980.65 : x
  2. Step 2: Convert to fraction form
    1,112,405.39/1,535,076.82 = 628,980.65/x
  3. Step 3: Cross multiply
    1,112,405.39x = 1,535,076.82 × 628,980.65
  4. Step 4: Simplify right side
    1,112,405.39x = 965,533,616,043.53
  5. Step 5: Solve for x
    x = 965,533,616,043.53/1,112,405.39
  6. Step 6: Final answer
    x = 867,969.20

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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.