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Finding the Fourth Proportional to 365,402.96, 548,323.12 and 128,944.48

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Solution

The fourth proportional to 365,402.96, 548,323.12 and 128,944.48 is: 193,493.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,402.96 : 548,323.12 = 128,944.48 : x
  2. Step 2: Convert to fraction form
    365,402.96/548,323.12 = 128,944.48/x
  3. Step 3: Cross multiply
    365,402.96x = 548,323.12 × 128,944.48
  4. Step 4: Simplify right side
    365,402.96x = 70,703,239,580.38
  5. Step 5: Solve for x
    x = 70,703,239,580.38/365,402.96
  6. Step 6: Final answer
    x = 193,493.89

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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.