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Finding the Fourth Proportional to 361,889.40, 499,397.72 and 208,922.43

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Solution

The fourth proportional to 361,889.40, 499,397.72 and 208,922.43 is: 288,307.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,889.40 : 499,397.72 = 208,922.43 : x
  2. Step 2: Convert to fraction form
    361,889.40/499,397.72 = 208,922.43/x
  3. Step 3: Cross multiply
    361,889.40x = 499,397.72 × 208,922.43
  4. Step 4: Simplify right side
    361,889.40x = 104,335,385,198.86
  5. Step 5: Solve for x
    x = 104,335,385,198.86/361,889.40
  6. Step 6: Final answer
    x = 288,307.38

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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.