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Finding the Fourth Proportional to 384,561.88, 576,990.54 and 270,818.84

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Solution

The fourth proportional to 384,561.88, 576,990.54 and 270,818.84 is: 406,332.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,561.88 : 576,990.54 = 270,818.84 : x
  2. Step 2: Convert to fraction form
    384,561.88/576,990.54 = 270,818.84/x
  3. Step 3: Cross multiply
    384,561.88x = 576,990.54 × 270,818.84
  4. Step 4: Simplify right side
    384,561.88x = 156,259,910,176.25
  5. Step 5: Solve for x
    x = 156,259,910,176.25/384,561.88
  6. Step 6: Final answer
    x = 406,332.29

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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.