Home / 1,201,863.52-1,658,663.77-685,628.78

Finding the Fourth Proportional to 1,201,863.52, 1,658,663.77 and 685,628.78

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Solution

The fourth proportional to 1,201,863.52, 1,658,663.77 and 685,628.78 is: 946,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,863.52 : 1,658,663.77 = 685,628.78 : x
  2. Step 2: Convert to fraction form
    1,201,863.52/1,658,663.77 = 685,628.78/x
  3. Step 3: Cross multiply
    1,201,863.52x = 1,658,663.77 × 685,628.78
  4. Step 4: Simplify right side
    1,201,863.52x = 1,137,227,607,047.91
  5. Step 5: Solve for x
    x = 1,137,227,607,047.91/1,201,863.52
  6. Step 6: Final answer
    x = 946,220.26

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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.