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Finding the Fourth Proportional to 471,383.40, 706,934.16 and 134,400.72

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Solution

The fourth proportional to 471,383.40, 706,934.16 and 134,400.72 is: 201,560.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,383.40 : 706,934.16 = 134,400.72 : x
  2. Step 2: Convert to fraction form
    471,383.40/706,934.16 = 134,400.72/x
  3. Step 3: Cross multiply
    471,383.40x = 706,934.16 × 134,400.72
  4. Step 4: Simplify right side
    471,383.40x = 95,012,460,096.60
  5. Step 5: Solve for x
    x = 95,012,460,096.60/471,383.40
  6. Step 6: Final answer
    x = 201,560.90

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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.