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Finding the Fourth Proportional to 483,361.30, 724,696.35 and 216,903.70

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Solution

The fourth proportional to 483,361.30, 724,696.35 and 216,903.70 is: 325,200.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,361.30 : 724,696.35 = 216,903.70 : x
  2. Step 2: Convert to fraction form
    483,361.30/724,696.35 = 216,903.70/x
  3. Step 3: Cross multiply
    483,361.30x = 724,696.35 × 216,903.70
  4. Step 4: Simplify right side
    483,361.30x = 157,189,319,691.50
  5. Step 5: Solve for x
    x = 157,189,319,691.50/483,361.30
  6. Step 6: Final answer
    x = 325,200.47

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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.