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Finding the Fourth Proportional to 365,607.90, 548,493.84 and 128,952.54

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Solution

The fourth proportional to 365,607.90, 548,493.84 and 128,952.54 is: 193,457.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,607.90 : 548,493.84 = 128,952.54 : x
  2. Step 2: Convert to fraction form
    365,607.90/548,493.84 = 128,952.54/x
  3. Step 3: Cross multiply
    365,607.90x = 548,493.84 × 128,952.54
  4. Step 4: Simplify right side
    365,607.90x = 70,729,673,842.35
  5. Step 5: Solve for x
    x = 70,729,673,842.35/365,607.90
  6. Step 6: Final answer
    x = 193,457.73

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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.