Home / 1,112,270.32-1,535,011.73-628,840.05

Finding the Fourth Proportional to 1,112,270.32, 1,535,011.73 and 628,840.05

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Solution

The fourth proportional to 1,112,270.32, 1,535,011.73 and 628,840.05 is: 867,843.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,270.32 : 1,535,011.73 = 628,840.05 : x
  2. Step 2: Convert to fraction form
    1,112,270.32/1,535,011.73 = 628,840.05/x
  3. Step 3: Cross multiply
    1,112,270.32x = 1,535,011.73 × 628,840.05
  4. Step 4: Simplify right side
    1,112,270.32x = 965,276,853,043.79
  5. Step 5: Solve for x
    x = 965,276,853,043.79/1,112,270.32
  6. Step 6: Final answer
    x = 867,843.76

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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.