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Finding the Fourth Proportional to 360,816.96, 540,707.76 and 202,712.88

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Solution

The fourth proportional to 360,816.96, 540,707.76 and 202,712.88 is: 303,778.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,816.96 : 540,707.76 = 202,712.88 : x
  2. Step 2: Convert to fraction form
    360,816.96/540,707.76 = 202,712.88/x
  3. Step 3: Cross multiply
    360,816.96x = 540,707.76 × 202,712.88
  4. Step 4: Simplify right side
    360,816.96x = 109,608,427,267.95
  5. Step 5: Solve for x
    x = 109,608,427,267.95/360,816.96
  6. Step 6: Final answer
    x = 303,778.48

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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.