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Finding the Fourth Proportional to 633,025.53, 949,538.31 and 212,300.19

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Solution

The fourth proportional to 633,025.53, 949,538.31 and 212,300.19 is: 318,450.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,025.53 : 949,538.31 = 212,300.19 : x
  2. Step 2: Convert to fraction form
    633,025.53/949,538.31 = 212,300.19/x
  3. Step 3: Cross multiply
    633,025.53x = 949,538.31 × 212,300.19
  4. Step 4: Simplify right side
    633,025.53x = 201,587,163,625.28
  5. Step 5: Solve for x
    x = 201,587,163,625.28/633,025.53
  6. Step 6: Final answer
    x = 318,450.29

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Double scale
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Similar ratio
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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.