Home / 453,739.91-678,899.78-270,693.79

Finding the Fourth Proportional to 453,739.91, 678,899.78 and 270,693.79

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Solution

The fourth proportional to 453,739.91, 678,899.78 and 270,693.79 is: 405,020.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,739.91 : 678,899.78 = 270,693.79 : x
  2. Step 2: Convert to fraction form
    453,739.91/678,899.78 = 270,693.79/x
  3. Step 3: Cross multiply
    453,739.91x = 678,899.78 × 270,693.79
  4. Step 4: Simplify right side
    453,739.91x = 183,773,949,730.40
  5. Step 5: Solve for x
    x = 183,773,949,730.40/453,739.91
  6. Step 6: Final answer
    x = 405,020.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.