Home / 1,211,973.51-1,672,528.69-668,097.59

Finding the Fourth Proportional to 1,211,973.51, 1,672,528.69 and 668,097.59

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Solution

The fourth proportional to 1,211,973.51, 1,672,528.69 and 668,097.59 is: 921,977.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,973.51 : 1,672,528.69 = 668,097.59 : x
  2. Step 2: Convert to fraction form
    1,211,973.51/1,672,528.69 = 668,097.59/x
  3. Step 3: Cross multiply
    1,211,973.51x = 1,672,528.69 × 668,097.59
  4. Step 4: Simplify right side
    1,211,973.51x = 1,117,412,378,632.21
  5. Step 5: Solve for x
    x = 1,117,412,378,632.21/1,211,973.51
  6. Step 6: Final answer
    x = 921,977.56

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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.