Home / 1,210,067.65-1,669,829.88-666,097.15

Finding the Fourth Proportional to 1,210,067.65, 1,669,829.88 and 666,097.15

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Solution

The fourth proportional to 1,210,067.65, 1,669,829.88 and 666,097.15 is: 919,179.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,067.65 : 1,669,829.88 = 666,097.15 : x
  2. Step 2: Convert to fraction form
    1,210,067.65/1,669,829.88 = 666,097.15/x
  3. Step 3: Cross multiply
    1,210,067.65x = 1,669,829.88 × 666,097.15
  4. Step 4: Simplify right side
    1,210,067.65x = 1,112,268,924,052.84
  5. Step 5: Solve for x
    x = 1,112,268,924,052.84/1,210,067.65
  6. Step 6: Final answer
    x = 919,179.13

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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.