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Finding the Fourth Proportional to 311,569.46, 467,354.19 and 74,912.15

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Solution

The fourth proportional to 311,569.46, 467,354.19 and 74,912.15 is: 112,368.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,569.46 : 467,354.19 = 74,912.15 : x
  2. Step 2: Convert to fraction form
    311,569.46/467,354.19 = 74,912.15/x
  3. Step 3: Cross multiply
    311,569.46x = 467,354.19 × 74,912.15
  4. Step 4: Simplify right side
    311,569.46x = 35,010,507,184.41
  5. Step 5: Solve for x
    x = 35,010,507,184.41/311,569.46
  6. Step 6: Final answer
    x = 112,368.23

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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.