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Finding the Fourth Proportional to 364,891.86, 547,114.23 and 128,261.70

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Solution

The fourth proportional to 364,891.86, 547,114.23 and 128,261.70 is: 192,313.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,891.86 : 547,114.23 = 128,261.70 : x
  2. Step 2: Convert to fraction form
    364,891.86/547,114.23 = 128,261.70/x
  3. Step 3: Cross multiply
    364,891.86x = 547,114.23 × 128,261.70
  4. Step 4: Simplify right side
    364,891.86x = 70,173,801,233.99
  5. Step 5: Solve for x
    x = 70,173,801,233.99/364,891.86
  6. Step 6: Final answer
    x = 192,313.97

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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.