Home / 1,912,521.32-2,639,337.48-1,053,112.32

Finding the Fourth Proportional to 1,912,521.32, 2,639,337.48 and 1,053,112.32

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Solution

The fourth proportional to 1,912,521.32, 2,639,337.48 and 1,053,112.32 is: 1,453,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,521.32 : 2,639,337.48 = 1,053,112.32 : x
  2. Step 2: Convert to fraction form
    1,912,521.32/2,639,337.48 = 1,053,112.32/x
  3. Step 3: Cross multiply
    1,912,521.32x = 2,639,337.48 × 1,053,112.32
  4. Step 4: Simplify right side
    1,912,521.32x = 2,779,518,816,825.75
  5. Step 5: Solve for x
    x = 2,779,518,816,825.75/1,912,521.32
  6. Step 6: Final answer
    x = 1,453,326.97

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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.