Home / 1,211,465.62-1,671,833.75-667,620.89

Finding the Fourth Proportional to 1,211,465.62, 1,671,833.75 and 667,620.89

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Solution

The fourth proportional to 1,211,465.62, 1,671,833.75 and 667,620.89 is: 921,323.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,465.62 : 1,671,833.75 = 667,620.89 : x
  2. Step 2: Convert to fraction form
    1,211,465.62/1,671,833.75 = 667,620.89/x
  3. Step 3: Cross multiply
    1,211,465.62x = 1,671,833.75 × 667,620.89
  4. Step 4: Simplify right side
    1,211,465.62x = 1,116,151,136,107.04
  5. Step 5: Solve for x
    x = 1,116,151,136,107.04/1,211,465.62
  6. Step 6: Final answer
    x = 921,323.00

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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.