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Finding the Fourth Proportional to 617,905.68, 852,511.68 and 345,933.60

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Solution

The fourth proportional to 617,905.68, 852,511.68 and 345,933.60 is: 477,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,905.68 : 852,511.68 = 345,933.60 : x
  2. Step 2: Convert to fraction form
    617,905.68/852,511.68 = 345,933.60/x
  3. Step 3: Cross multiply
    617,905.68x = 852,511.68 × 345,933.60
  4. Step 4: Simplify right side
    617,905.68x = 294,912,434,504.45
  5. Step 5: Solve for x
    x = 294,912,434,504.45/617,905.68
  6. Step 6: Final answer
    x = 477,277.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.