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Finding the Fourth Proportional to 619,367.10, 928,583.03 and 406,188.71

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Solution

The fourth proportional to 619,367.10, 928,583.03 and 406,188.71 is: 608,976.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,367.10 : 928,583.03 = 406,188.71 : x
  2. Step 2: Convert to fraction form
    619,367.10/928,583.03 = 406,188.71/x
  3. Step 3: Cross multiply
    619,367.10x = 928,583.03 × 406,188.71
  4. Step 4: Simplify right side
    619,367.10x = 377,179,936,409.73
  5. Step 5: Solve for x
    x = 377,179,936,409.73/619,367.10
  6. Step 6: Final answer
    x = 608,976.38

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1.5x scale

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.