Home / 786,023.65-1,179,284.75-280,573.53

Finding the Fourth Proportional to 786,023.65, 1,179,284.75 and 280,573.53

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Solution

The fourth proportional to 786,023.65, 1,179,284.75 and 280,573.53 is: 420,949.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,023.65 : 1,179,284.75 = 280,573.53 : x
  2. Step 2: Convert to fraction form
    786,023.65/1,179,284.75 = 280,573.53/x
  3. Step 3: Cross multiply
    786,023.65x = 1,179,284.75 × 280,573.53
  4. Step 4: Simplify right side
    786,023.65x = 330,876,085,182.67
  5. Step 5: Solve for x
    x = 330,876,085,182.67/786,023.65
  6. Step 6: Final answer
    x = 420,949.27

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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.