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Finding the Fourth Proportional to 322,606.40, 483,909.60 and 216,852.80

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Solution

The fourth proportional to 322,606.40, 483,909.60 and 216,852.80 is: 325,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,606.40 : 483,909.60 = 216,852.80 : x
  2. Step 2: Convert to fraction form
    322,606.40/483,909.60 = 216,852.80/x
  3. Step 3: Cross multiply
    322,606.40x = 483,909.60 × 216,852.80
  4. Step 4: Simplify right side
    322,606.40x = 104,937,151,706.88
  5. Step 5: Solve for x
    x = 104,937,151,706.88/322,606.40
  6. Step 6: Final answer
    x = 325,279.20

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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.