Home / 1,208,969.82-1,668,389.20-657,697.54

Finding the Fourth Proportional to 1,208,969.82, 1,668,389.20 and 657,697.54

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Solution

The fourth proportional to 1,208,969.82, 1,668,389.20 and 657,697.54 is: 907,628.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,969.82 : 1,668,389.20 = 657,697.54 : x
  2. Step 2: Convert to fraction form
    1,208,969.82/1,668,389.20 = 657,697.54/x
  3. Step 3: Cross multiply
    1,208,969.82x = 1,668,389.20 × 657,697.54
  4. Step 4: Simplify right side
    1,208,969.82x = 1,097,295,472,602.57
  5. Step 5: Solve for x
    x = 1,097,295,472,602.57/1,208,969.82
  6. Step 6: Final answer
    x = 907,628.51

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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.