Home / 395,264.28-545,464.59-213,976.07

Finding the Fourth Proportional to 395,264.28, 545,464.59 and 213,976.07

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Solution

The fourth proportional to 395,264.28, 545,464.59 and 213,976.07 is: 295,286.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,264.28 : 545,464.59 = 213,976.07 : x
  2. Step 2: Convert to fraction form
    395,264.28/545,464.59 = 213,976.07/x
  3. Step 3: Cross multiply
    395,264.28x = 545,464.59 × 213,976.07
  4. Step 4: Simplify right side
    395,264.28x = 116,716,369,292.36
  5. Step 5: Solve for x
    x = 116,716,369,292.36/395,264.28
  6. Step 6: Final answer
    x = 295,286.91

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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.