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Finding the Fourth Proportional to 619,765.95, 930,042.18 and 264,782.64

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Solution

The fourth proportional to 619,765.95, 930,042.18 and 264,782.64 is: 397,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,765.95 : 930,042.18 = 264,782.64 : x
  2. Step 2: Convert to fraction form
    619,765.95/930,042.18 = 264,782.64/x
  3. Step 3: Cross multiply
    619,765.95x = 930,042.18 × 264,782.64
  4. Step 4: Simplify right side
    619,765.95x = 246,259,023,731.76
  5. Step 5: Solve for x
    x = 246,259,023,731.76/619,765.95
  6. Step 6: Final answer
    x = 397,341.97

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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.