Home / 1,173,216.64-1,619,040-636,672.64

Finding the Fourth Proportional to 1,173,216.64, 1,619,040 and 636,672.64

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Solution

The fourth proportional to 1,173,216.64, 1,619,040 and 636,672.64 is: 878,608.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,216.64 : 1,619,040 = 636,672.64 : x
  2. Step 2: Convert to fraction form
    1,173,216.64/1,619,040 = 636,672.64/x
  3. Step 3: Cross multiply
    1,173,216.64x = 1,619,040 × 636,672.64
  4. Step 4: Simplify right side
    1,173,216.64x = 1,030,798,471,065.60
  5. Step 5: Solve for x
    x = 1,030,798,471,065.60/1,173,216.64
  6. Step 6: Final answer
    x = 878,608.81

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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.