Home / 1,913,634.36-2,643,501.42-1,812,857.40

Finding the Fourth Proportional to 1,913,634.36, 2,643,501.42 and 1,812,857.40

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Solution

The fourth proportional to 1,913,634.36, 2,643,501.42 and 1,812,857.40 is: 2,504,287.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,634.36 : 2,643,501.42 = 1,812,857.40 : x
  2. Step 2: Convert to fraction form
    1,913,634.36/2,643,501.42 = 1,812,857.40/x
  3. Step 3: Cross multiply
    1,913,634.36x = 2,643,501.42 × 1,812,857.40
  4. Step 4: Simplify right side
    1,913,634.36x = 4,792,291,111,157.51
  5. Step 5: Solve for x
    x = 4,792,291,111,157.51/1,913,634.36
  6. Step 6: Final answer
    x = 2,504,287.76

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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.