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Finding the Fourth Proportional to 619,763.45, 930,038.43 and 264,780.14

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Solution

The fourth proportional to 619,763.45, 930,038.43 and 264,780.14 is: 397,338.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,763.45 : 930,038.43 = 264,780.14 : x
  2. Step 2: Convert to fraction form
    619,763.45/930,038.43 = 264,780.14/x
  3. Step 3: Cross multiply
    619,763.45x = 930,038.43 × 264,780.14
  4. Step 4: Simplify right side
    619,763.45x = 246,255,701,050.59
  5. Step 5: Solve for x
    x = 246,255,701,050.59/619,763.45
  6. Step 6: Final answer
    x = 397,338.22

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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.