Home / 402,983.87-556,106.58-219,216.33

Finding the Fourth Proportional to 402,983.87, 556,106.58 and 219,216.33

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Solution

The fourth proportional to 402,983.87, 556,106.58 and 219,216.33 is: 302,512.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,983.87 : 556,106.58 = 219,216.33 : x
  2. Step 2: Convert to fraction form
    402,983.87/556,106.58 = 219,216.33/x
  3. Step 3: Cross multiply
    402,983.87x = 556,106.58 × 219,216.33
  4. Step 4: Simplify right side
    402,983.87x = 121,907,643,556.45
  5. Step 5: Solve for x
    x = 121,907,643,556.45/402,983.87
  6. Step 6: Final answer
    x = 302,512.47

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1.5x scale

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.