Home / 1,912,631.34-2,639,431.26-1,053,189.55

Finding the Fourth Proportional to 1,912,631.34, 2,639,431.26 and 1,053,189.55

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Solution

The fourth proportional to 1,912,631.34, 2,639,431.26 and 1,053,189.55 is: 1,453,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,631.34 : 2,639,431.26 = 1,053,189.55 : x
  2. Step 2: Convert to fraction form
    1,912,631.34/2,639,431.26 = 1,053,189.55/x
  3. Step 3: Cross multiply
    1,912,631.34x = 2,639,431.26 × 1,053,189.55
  4. Step 4: Simplify right side
    1,912,631.34x = 2,779,821,424,274.62
  5. Step 5: Solve for x
    x = 2,779,821,424,274.62/1,912,631.34
  6. Step 6: Final answer
    x = 1,453,401.58

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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.