Home / 1,211,721.18-1,672,212.54-695,569.36

Finding the Fourth Proportional to 1,211,721.18, 1,672,212.54 and 695,569.36

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Solution

The fourth proportional to 1,211,721.18, 1,672,212.54 and 695,569.36 is: 959,907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,721.18 : 1,672,212.54 = 695,569.36 : x
  2. Step 2: Convert to fraction form
    1,211,721.18/1,672,212.54 = 695,569.36/x
  3. Step 3: Cross multiply
    1,211,721.18x = 1,672,212.54 × 695,569.36
  4. Step 4: Simplify right side
    1,211,721.18x = 1,163,139,801,577.84
  5. Step 5: Solve for x
    x = 1,163,139,801,577.84/1,211,721.18
  6. Step 6: Final answer
    x = 959,907.13

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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.