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Finding the Fourth Proportional to 364,811.28, 547,301.20 and 115,493.28

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Solution

The fourth proportional to 364,811.28, 547,301.20 and 115,493.28 is: 173,266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,811.28 : 547,301.20 = 115,493.28 : x
  2. Step 2: Convert to fraction form
    364,811.28/547,301.20 = 115,493.28/x
  3. Step 3: Cross multiply
    364,811.28x = 547,301.20 × 115,493.28
  4. Step 4: Simplify right side
    364,811.28x = 63,209,610,735.94
  5. Step 5: Solve for x
    x = 63,209,610,735.94/364,811.28
  6. Step 6: Final answer
    x = 173,266.60

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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.