Home / 1,217,947.47-1,680,771.11-674,121.03

Finding the Fourth Proportional to 1,217,947.47, 1,680,771.11 and 674,121.03

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Solution

The fourth proportional to 1,217,947.47, 1,680,771.11 and 674,121.03 is: 930,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,947.47 : 1,680,771.11 = 674,121.03 : x
  2. Step 2: Convert to fraction form
    1,217,947.47/1,680,771.11 = 674,121.03/x
  3. Step 3: Cross multiply
    1,217,947.47x = 1,680,771.11 × 674,121.03
  4. Step 4: Simplify right side
    1,217,947.47x = 1,133,043,148,496.84
  5. Step 5: Solve for x
    x = 1,133,043,148,496.84/1,217,947.47
  6. Step 6: Final answer
    x = 930,289.01

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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.