Home / 1,638,202.56-2,457,137.64-439,969.20

Finding the Fourth Proportional to 1,638,202.56, 2,457,137.64 and 439,969.20

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Solution

The fourth proportional to 1,638,202.56, 2,457,137.64 and 439,969.20 is: 659,909.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,202.56 : 2,457,137.64 = 439,969.20 : x
  2. Step 2: Convert to fraction form
    1,638,202.56/2,457,137.64 = 439,969.20/x
  3. Step 3: Cross multiply
    1,638,202.56x = 2,457,137.64 × 439,969.20
  4. Step 4: Simplify right side
    1,638,202.56x = 1,081,064,881,760.69
  5. Step 5: Solve for x
    x = 1,081,064,881,760.69/1,638,202.56
  6. Step 6: Final answer
    x = 659,909.16

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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.