Home / 2,885,969.95-3,980,903.29-1,905,918.01

Finding the Fourth Proportional to 2,885,969.95, 3,980,903.29 and 1,905,918.01

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Solution

The fourth proportional to 2,885,969.95, 3,980,903.29 and 1,905,918.01 is: 2,629,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885,969.95 : 3,980,903.29 = 1,905,918.01 : x
  2. Step 2: Convert to fraction form
    2,885,969.95/3,980,903.29 = 1,905,918.01/x
  3. Step 3: Cross multiply
    2,885,969.95x = 3,980,903.29 × 1,905,918.01
  4. Step 4: Simplify right side
    2,885,969.95x = 7,587,275,276,479.25
  5. Step 5: Solve for x
    x = 7,587,275,276,479.25/2,885,969.95
  6. Step 6: Final answer
    x = 2,629,020.89

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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.