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Finding the Fourth Proportional to 719,595, 993,128.58 and 417,789

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Solution

The fourth proportional to 719,595, 993,128.58 and 417,789 is: 576,599.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,595 : 993,128.58 = 417,789 : x
  2. Step 2: Convert to fraction form
    719,595/993,128.58 = 417,789/x
  3. Step 3: Cross multiply
    719,595x = 993,128.58 × 417,789
  4. Step 4: Simplify right side
    719,595x = 414,918,196,309.62
  5. Step 5: Solve for x
    x = 414,918,196,309.62/719,595
  6. Step 6: Final answer
    x = 576,599.61

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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.