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Finding the Fourth Proportional to 365,586.76, 548,383.02 and 128,875.24

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Solution

The fourth proportional to 365,586.76, 548,383.02 and 128,875.24 is: 193,313.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,586.76 : 548,383.02 = 128,875.24 : x
  2. Step 2: Convert to fraction form
    365,586.76/548,383.02 = 128,875.24/x
  3. Step 3: Cross multiply
    365,586.76x = 548,383.02 × 128,875.24
  4. Step 4: Simplify right side
    365,586.76x = 70,672,993,314.42
  5. Step 5: Solve for x
    x = 70,672,993,314.42/365,586.76
  6. Step 6: Final answer
    x = 193,313.88

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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.