Home / 1,973,390.75-2,960,554.13-643,694.75

Finding the Fourth Proportional to 1,973,390.75, 2,960,554.13 and 643,694.75

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Solution

The fourth proportional to 1,973,390.75, 2,960,554.13 and 643,694.75 is: 965,694.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973,390.75 : 2,960,554.13 = 643,694.75 : x
  2. Step 2: Convert to fraction form
    1,973,390.75/2,960,554.13 = 643,694.75/x
  3. Step 3: Cross multiply
    1,973,390.75x = 2,960,554.13 × 643,694.75
  4. Step 4: Simplify right side
    1,973,390.75x = 1,905,693,147,353.34
  5. Step 5: Solve for x
    x = 1,905,693,147,353.34/1,973,390.75
  6. Step 6: Final answer
    x = 965,694.78

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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.