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Finding the Fourth Proportional to 980,357.89, 1,471,796.19 and 755,860.93

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Solution

The fourth proportional to 980,357.89, 1,471,796.19 and 755,860.93 is: 1,134,762.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,357.89 : 1,471,796.19 = 755,860.93 : x
  2. Step 2: Convert to fraction form
    980,357.89/1,471,796.19 = 755,860.93/x
  3. Step 3: Cross multiply
    980,357.89x = 1,471,796.19 × 755,860.93
  4. Step 4: Simplify right side
    980,357.89x = 1,112,473,236,943.86
  5. Step 5: Solve for x
    x = 1,112,473,236,943.86/980,357.89
  6. Step 6: Final answer
    x = 1,134,762.36

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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.