Home / 1,912,671.51-2,639,486.43-1,053,229.65

Finding the Fourth Proportional to 1,912,671.51, 2,639,486.43 and 1,053,229.65

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Solution

The fourth proportional to 1,912,671.51, 2,639,486.43 and 1,053,229.65 is: 1,453,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,671.51 : 2,639,486.43 = 1,053,229.65 : x
  2. Step 2: Convert to fraction form
    1,912,671.51/2,639,486.43 = 1,053,229.65/x
  3. Step 3: Cross multiply
    1,912,671.51x = 2,639,486.43 × 1,053,229.65
  4. Step 4: Simplify right side
    1,912,671.51x = 2,779,985,368,848.65
  5. Step 5: Solve for x
    x = 2,779,985,368,848.65/1,912,671.51
  6. Step 6: Final answer
    x = 1,453,456.78

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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.