Home / 1,385,683.61-1,912,206.08-773,819.33

Finding the Fourth Proportional to 1,385,683.61, 1,912,206.08 and 773,819.33

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Solution

The fourth proportional to 1,385,683.61, 1,912,206.08 and 773,819.33 is: 1,067,849.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,683.61 : 1,912,206.08 = 773,819.33 : x
  2. Step 2: Convert to fraction form
    1,385,683.61/1,912,206.08 = 773,819.33/x
  3. Step 3: Cross multiply
    1,385,683.61x = 1,912,206.08 × 773,819.33
  4. Step 4: Simplify right side
    1,385,683.61x = 1,479,702,020,021.04
  5. Step 5: Solve for x
    x = 1,479,702,020,021.04/1,385,683.61
  6. Step 6: Final answer
    x = 1,067,849.84

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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.