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Finding the Fourth Proportional to 619,367.38, 854,233.90 and 511,750.58

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Solution

The fourth proportional to 619,367.38, 854,233.90 and 511,750.58 is: 705,808.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,367.38 : 854,233.90 = 511,750.58 : x
  2. Step 2: Convert to fraction form
    619,367.38/854,233.90 = 511,750.58/x
  3. Step 3: Cross multiply
    619,367.38x = 854,233.90 × 511,750.58
  4. Step 4: Simplify right side
    619,367.38x = 437,154,688,230.12
  5. Step 5: Solve for x
    x = 437,154,688,230.12/619,367.38
  6. Step 6: Final answer
    x = 705,808.38

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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.