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Finding the Fourth Proportional to 1,723,596.11, 2,584,978.87 and 763,520.88

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Solution

The fourth proportional to 1,723,596.11, 2,584,978.87 and 763,520.88 is: 1,145,097.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723,596.11 : 2,584,978.87 = 763,520.88 : x
  2. Step 2: Convert to fraction form
    1,723,596.11/2,584,978.87 = 763,520.88/x
  3. Step 3: Cross multiply
    1,723,596.11x = 2,584,978.87 × 763,520.88
  4. Step 4: Simplify right side
    1,723,596.11x = 1,973,685,350,820.28
  5. Step 5: Solve for x
    x = 1,973,685,350,820.28/1,723,596.11
  6. Step 6: Final answer
    x = 1,145,097.35

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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.