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Finding the Fourth Proportional to 619,265.76, 928,019.73 and 259,048.41

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Solution

The fourth proportional to 619,265.76, 928,019.73 and 259,048.41 is: 388,204.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,265.76 : 928,019.73 = 259,048.41 : x
  2. Step 2: Convert to fraction form
    619,265.76/928,019.73 = 259,048.41/x
  3. Step 3: Cross multiply
    619,265.76x = 928,019.73 × 259,048.41
  4. Step 4: Simplify right side
    619,265.76x = 240,402,038,216.60
  5. Step 5: Solve for x
    x = 240,402,038,216.60/619,265.76
  6. Step 6: Final answer
    x = 388,204.95

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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.