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Finding the Fourth Proportional to 299,479.74, 413,270.24 and 163,519.42

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Solution

The fourth proportional to 299,479.74, 413,270.24 and 163,519.42 is: 225,650.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,479.74 : 413,270.24 = 163,519.42 : x
  2. Step 2: Convert to fraction form
    299,479.74/413,270.24 = 163,519.42/x
  3. Step 3: Cross multiply
    299,479.74x = 413,270.24 × 163,519.42
  4. Step 4: Simplify right side
    299,479.74x = 67,577,709,130.46
  5. Step 5: Solve for x
    x = 67,577,709,130.46/299,479.74
  6. Step 6: Final answer
    x = 225,650.35

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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.