Home / 1,668,989.68-2,303,205.75-905,043.85

Finding the Fourth Proportional to 1,668,989.68, 2,303,205.75 and 905,043.85

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Solution

The fourth proportional to 1,668,989.68, 2,303,205.75 and 905,043.85 is: 1,248,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,989.68 : 2,303,205.75 = 905,043.85 : x
  2. Step 2: Convert to fraction form
    1,668,989.68/2,303,205.75 = 905,043.85/x
  3. Step 3: Cross multiply
    1,668,989.68x = 2,303,205.75 × 905,043.85
  4. Step 4: Simplify right side
    1,668,989.68x = 2,084,502,193,564.12
  5. Step 5: Solve for x
    x = 2,084,502,193,564.12/1,668,989.68
  6. Step 6: Final answer
    x = 1,248,960.51

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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.