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Finding the Fourth Proportional to 617,303.11, 851,911.41 and 345,354.79

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Solution

The fourth proportional to 617,303.11, 851,911.41 and 345,354.79 is: 476,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,303.11 : 851,911.41 = 345,354.79 : x
  2. Step 2: Convert to fraction form
    617,303.11/851,911.41 = 345,354.79/x
  3. Step 3: Cross multiply
    617,303.11x = 851,911.41 × 345,354.79
  4. Step 4: Simplify right side
    617,303.11x = 294,211,686,099.15
  5. Step 5: Solve for x
    x = 294,211,686,099.15/617,303.11
  6. Step 6: Final answer
    x = 476,608.14

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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.