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Finding the Fourth Proportional to 364,021.44, 546,013.12 and 139,489.44

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Solution

The fourth proportional to 364,021.44, 546,013.12 and 139,489.44 is: 209,226.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,021.44 : 546,013.12 = 139,489.44 : x
  2. Step 2: Convert to fraction form
    364,021.44/546,013.12 = 139,489.44/x
  3. Step 3: Cross multiply
    364,021.44x = 546,013.12 × 139,489.44
  4. Step 4: Simplify right side
    364,021.44x = 76,163,064,341.45
  5. Step 5: Solve for x
    x = 76,163,064,341.45/364,021.44
  6. Step 6: Final answer
    x = 209,226.86

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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.