Home / 1,620,287.28-2,236,186.44-976,032.72

Finding the Fourth Proportional to 1,620,287.28, 2,236,186.44 and 976,032.72

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Solution

The fourth proportional to 1,620,287.28, 2,236,186.44 and 976,032.72 is: 1,347,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,287.28 : 2,236,186.44 = 976,032.72 : x
  2. Step 2: Convert to fraction form
    1,620,287.28/2,236,186.44 = 976,032.72/x
  3. Step 3: Cross multiply
    1,620,287.28x = 2,236,186.44 × 976,032.72
  4. Step 4: Simplify right side
    1,620,287.28x = 2,182,591,133,460.32
  5. Step 5: Solve for x
    x = 2,182,591,133,460.32/1,620,287.28
  6. Step 6: Final answer
    x = 1,347,039.60

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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.