Home / 640,977.20-884,521.86-350,584.10

Finding the Fourth Proportional to 640,977.20, 884,521.86 and 350,584.10

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Solution

The fourth proportional to 640,977.20, 884,521.86 and 350,584.10 is: 483,791.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,977.20 : 884,521.86 = 350,584.10 : x
  2. Step 2: Convert to fraction form
    640,977.20/884,521.86 = 350,584.10/x
  3. Step 3: Cross multiply
    640,977.20x = 884,521.86 × 350,584.10
  4. Step 4: Simplify right side
    640,977.20x = 310,099,300,218.43
  5. Step 5: Solve for x
    x = 310,099,300,218.43/640,977.20
  6. Step 6: Final answer
    x = 483,791.47

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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.