Home / 612,023.24-919,584.82-387,489.24

Finding the Fourth Proportional to 612,023.24, 919,584.82 and 387,489.24

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Solution

The fourth proportional to 612,023.24, 919,584.82 and 387,489.24 is: 582,215.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,023.24 : 919,584.82 = 387,489.24 : x
  2. Step 2: Convert to fraction form
    612,023.24/919,584.82 = 387,489.24/x
  3. Step 3: Cross multiply
    612,023.24x = 919,584.82 × 387,489.24
  4. Step 4: Simplify right side
    612,023.24x = 356,329,223,017.34
  5. Step 5: Solve for x
    x = 356,329,223,017.34/612,023.24
  6. Step 6: Final answer
    x = 582,215.18

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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.