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Finding the Fourth Proportional to 484,626.60, 727,055.10 and 203,999.40

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Solution

The fourth proportional to 484,626.60, 727,055.10 and 203,999.40 is: 306,047.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,626.60 : 727,055.10 = 203,999.40 : x
  2. Step 2: Convert to fraction form
    484,626.60/727,055.10 = 203,999.40/x
  3. Step 3: Cross multiply
    484,626.60x = 727,055.10 × 203,999.40
  4. Step 4: Simplify right side
    484,626.60x = 148,318,804,166.94
  5. Step 5: Solve for x
    x = 148,318,804,166.94/484,626.60
  6. Step 6: Final answer
    x = 306,047.59

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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.