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Finding the Fourth Proportional to 633,046.12, 949,568.94 and 212,320.60

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Solution

The fourth proportional to 633,046.12, 949,568.94 and 212,320.60 is: 318,480.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,046.12 : 949,568.94 = 212,320.60 : x
  2. Step 2: Convert to fraction form
    633,046.12/949,568.94 = 212,320.60/x
  3. Step 3: Cross multiply
    633,046.12x = 949,568.94 × 212,320.60
  4. Step 4: Simplify right side
    633,046.12x = 201,613,047,082.16
  5. Step 5: Solve for x
    x = 201,613,047,082.16/633,046.12
  6. Step 6: Final answer
    x = 318,480.82

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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.