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Finding the Fourth Proportional to 322,577.40, 483,866.10 and 317,328.60

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Solution

The fourth proportional to 322,577.40, 483,866.10 and 317,328.60 is: 475,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,577.40 : 483,866.10 = 317,328.60 : x
  2. Step 2: Convert to fraction form
    322,577.40/483,866.10 = 317,328.60/x
  3. Step 3: Cross multiply
    322,577.40x = 483,866.10 × 317,328.60
  4. Step 4: Simplify right side
    322,577.40x = 153,544,552,100.46
  5. Step 5: Solve for x
    x = 153,544,552,100.46/322,577.40
  6. Step 6: Final answer
    x = 475,992.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.