Home / 1,212,115.59-1,672,643.66-668,223.27

Finding the Fourth Proportional to 1,212,115.59, 1,672,643.66 and 668,223.27

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Solution

The fourth proportional to 1,212,115.59, 1,672,643.66 and 668,223.27 is: 922,106.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,115.59 : 1,672,643.66 = 668,223.27 : x
  2. Step 2: Convert to fraction form
    1,212,115.59/1,672,643.66 = 668,223.27/x
  3. Step 3: Cross multiply
    1,212,115.59x = 1,672,643.66 × 668,223.27
  4. Step 4: Simplify right side
    1,212,115.59x = 1,117,699,412,688.85
  5. Step 5: Solve for x
    x = 1,117,699,412,688.85/1,212,115.59
  6. Step 6: Final answer
    x = 922,106.29

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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.