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Finding the Fourth Proportional to 364,892.86, 547,115.73 and 128,262.70

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Solution

The fourth proportional to 364,892.86, 547,115.73 and 128,262.70 is: 192,315.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,892.86 : 547,115.73 = 128,262.70 : x
  2. Step 2: Convert to fraction form
    364,892.86/547,115.73 = 128,262.70/x
  3. Step 3: Cross multiply
    364,892.86x = 547,115.73 × 128,262.70
  4. Step 4: Simplify right side
    364,892.86x = 70,174,540,742.27
  5. Step 5: Solve for x
    x = 70,174,540,742.27/364,892.86
  6. Step 6: Final answer
    x = 192,315.47

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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.