Home / 1,912,654-2,639,462.52-1,053,212.21

Finding the Fourth Proportional to 1,912,654, 2,639,462.52 and 1,053,212.21

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Solution

The fourth proportional to 1,912,654, 2,639,462.52 and 1,053,212.21 is: 1,453,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,654 : 2,639,462.52 = 1,053,212.21 : x
  2. Step 2: Convert to fraction form
    1,912,654/2,639,462.52 = 1,053,212.21/x
  3. Step 3: Cross multiply
    1,912,654x = 2,639,462.52 × 1,053,212.21
  4. Step 4: Simplify right side
    1,912,654x = 2,779,914,153,901.37
  5. Step 5: Solve for x
    x = 2,779,914,153,901.37/1,912,654
  6. Step 6: Final answer
    x = 1,453,432.85

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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.