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Finding the Fourth Proportional to 617,106.58, 851,685.96 and 345,189.58

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Solution

The fourth proportional to 617,106.58, 851,685.96 and 345,189.58 is: 476,405.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,106.58 : 851,685.96 = 345,189.58 : x
  2. Step 2: Convert to fraction form
    617,106.58/851,685.96 = 345,189.58/x
  3. Step 3: Cross multiply
    617,106.58x = 851,685.96 × 345,189.58
  4. Step 4: Simplify right side
    617,106.58x = 293,993,118,824.30
  5. Step 5: Solve for x
    x = 293,993,118,824.30/617,106.58
  6. Step 6: Final answer
    x = 476,405.74

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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.