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Finding the Fourth Proportional to 673,617.48, 929,269.86 and 455,902.44

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Solution

The fourth proportional to 673,617.48, 929,269.86 and 455,902.44 is: 628,927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,617.48 : 929,269.86 = 455,902.44 : x
  2. Step 2: Convert to fraction form
    673,617.48/929,269.86 = 455,902.44/x
  3. Step 3: Cross multiply
    673,617.48x = 929,269.86 × 455,902.44
  4. Step 4: Simplify right side
    673,617.48x = 423,656,396,592.46
  5. Step 5: Solve for x
    x = 423,656,396,592.46/673,617.48
  6. Step 6: Final answer
    x = 628,927.26

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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.