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Finding the Fourth Proportional to 368,383.55, 508,438.92 and 230,626.54

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Solution

The fourth proportional to 368,383.55, 508,438.92 and 230,626.54 is: 318,308.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,383.55 : 508,438.92 = 230,626.54 : x
  2. Step 2: Convert to fraction form
    368,383.55/508,438.92 = 230,626.54/x
  3. Step 3: Cross multiply
    368,383.55x = 508,438.92 × 230,626.54
  4. Step 4: Simplify right side
    368,383.55x = 117,259,510,421.34
  5. Step 5: Solve for x
    x = 117,259,510,421.34/368,383.55
  6. Step 6: Final answer
    x = 318,308.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.