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Finding the Fourth Proportional to 552,846.03, 762,801.34 and 311,040.38

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Solution

The fourth proportional to 552,846.03, 762,801.34 and 311,040.38 is: 429,164.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,846.03 : 762,801.34 = 311,040.38 : x
  2. Step 2: Convert to fraction form
    552,846.03/762,801.34 = 311,040.38/x
  3. Step 3: Cross multiply
    552,846.03x = 762,801.34 × 311,040.38
  4. Step 4: Simplify right side
    552,846.03x = 237,262,017,787.93
  5. Step 5: Solve for x
    x = 237,262,017,787.93/552,846.03
  6. Step 6: Final answer
    x = 429,164.73

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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.