Home / 1,210,055.91-1,669,846.64-666,186.27

Finding the Fourth Proportional to 1,210,055.91, 1,669,846.64 and 666,186.27

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Solution

The fourth proportional to 1,210,055.91, 1,669,846.64 and 666,186.27 is: 919,320.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,055.91 : 1,669,846.64 = 666,186.27 : x
  2. Step 2: Convert to fraction form
    1,210,055.91/1,669,846.64 = 666,186.27/x
  3. Step 3: Cross multiply
    1,210,055.91x = 1,669,846.64 × 666,186.27
  4. Step 4: Simplify right side
    1,210,055.91x = 1,112,428,901,242.70
  5. Step 5: Solve for x
    x = 1,112,428,901,242.70/1,210,055.91
  6. Step 6: Final answer
    x = 919,320.25

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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.