Home / 1,217,623.19-1,826,415.64-418,911.65

Finding the Fourth Proportional to 1,217,623.19, 1,826,415.64 and 418,911.65

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Solution

The fourth proportional to 1,217,623.19, 1,826,415.64 and 418,911.65 is: 628,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,623.19 : 1,826,415.64 = 418,911.65 : x
  2. Step 2: Convert to fraction form
    1,217,623.19/1,826,415.64 = 418,911.65/x
  3. Step 3: Cross multiply
    1,217,623.19x = 1,826,415.64 × 418,911.65
  4. Step 4: Simplify right side
    1,217,623.19x = 765,106,787,578.83
  5. Step 5: Solve for x
    x = 765,106,787,578.83/1,217,623.19
  6. Step 6: Final answer
    x = 628,360.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.