Home / 1,221,655.36-1,685,827.48-677,785.36

Finding the Fourth Proportional to 1,221,655.36, 1,685,827.48 and 677,785.36

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Solution

The fourth proportional to 1,221,655.36, 1,685,827.48 and 677,785.36 is: 935,312.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,655.36 : 1,685,827.48 = 677,785.36 : x
  2. Step 2: Convert to fraction form
    1,221,655.36/1,685,827.48 = 677,785.36/x
  3. Step 3: Cross multiply
    1,221,655.36x = 1,685,827.48 × 677,785.36
  4. Step 4: Simplify right side
    1,221,655.36x = 1,142,629,185,429.69
  5. Step 5: Solve for x
    x = 1,142,629,185,429.69/1,221,655.36
  6. Step 6: Final answer
    x = 935,312.22

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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.