Home / 1,210,338.68-1,670,201.18-666,371.16

Finding the Fourth Proportional to 1,210,338.68, 1,670,201.18 and 666,371.16

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Solution

The fourth proportional to 1,210,338.68, 1,670,201.18 and 666,371.16 is: 919,555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,338.68 : 1,670,201.18 = 666,371.16 : x
  2. Step 2: Convert to fraction form
    1,210,338.68/1,670,201.18 = 666,371.16/x
  3. Step 3: Cross multiply
    1,210,338.68x = 1,670,201.18 × 666,371.16
  4. Step 4: Simplify right side
    1,210,338.68x = 1,112,973,897,749.97
  5. Step 5: Solve for x
    x = 1,112,973,897,749.97/1,210,338.68
  6. Step 6: Final answer
    x = 919,555.75

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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.