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Finding the Fourth Proportional to 632,556.45, 947,358.45 and 619,871.85

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Solution

The fourth proportional to 632,556.45, 947,358.45 and 619,871.85 is: 928,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,556.45 : 947,358.45 = 619,871.85 : x
  2. Step 2: Convert to fraction form
    632,556.45/947,358.45 = 619,871.85/x
  3. Step 3: Cross multiply
    632,556.45x = 947,358.45 × 619,871.85
  4. Step 4: Simplify right side
    632,556.45x = 587,240,835,014.63
  5. Step 5: Solve for x
    x = 587,240,835,014.63/632,556.45
  6. Step 6: Final answer
    x = 928,361.15

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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.