Home / 1,229,487.19-1,696,699.73-685,657.36

Finding the Fourth Proportional to 1,229,487.19, 1,696,699.73 and 685,657.36

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Solution

The fourth proportional to 1,229,487.19, 1,696,699.73 and 685,657.36 is: 946,211.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,487.19 : 1,696,699.73 = 685,657.36 : x
  2. Step 2: Convert to fraction form
    1,229,487.19/1,696,699.73 = 685,657.36/x
  3. Step 3: Cross multiply
    1,229,487.19x = 1,696,699.73 × 685,657.36
  4. Step 4: Simplify right side
    1,229,487.19x = 1,163,354,657,584.51
  5. Step 5: Solve for x
    x = 1,163,354,657,584.51/1,229,487.19
  6. Step 6: Final answer
    x = 946,211.29

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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.