Home / 619,225.47-854,168.23-389,418.24

Finding the Fourth Proportional to 619,225.47, 854,168.23 and 389,418.24

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Solution

The fourth proportional to 619,225.47, 854,168.23 and 389,418.24 is: 537,168.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,225.47 : 854,168.23 = 389,418.24 : x
  2. Step 2: Convert to fraction form
    619,225.47/854,168.23 = 389,418.24/x
  3. Step 3: Cross multiply
    619,225.47x = 854,168.23 × 389,418.24
  4. Step 4: Simplify right side
    619,225.47x = 332,628,686,843.42
  5. Step 5: Solve for x
    x = 332,628,686,843.42/619,225.47
  6. Step 6: Final answer
    x = 537,168.94

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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.