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Finding the Fourth Proportional to 484,803.20, 727,204.80 and 274,851.20

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Solution

The fourth proportional to 484,803.20, 727,204.80 and 274,851.20 is: 412,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,803.20 : 727,204.80 = 274,851.20 : x
  2. Step 2: Convert to fraction form
    484,803.20/727,204.80 = 274,851.20/x
  3. Step 3: Cross multiply
    484,803.20x = 727,204.80 × 274,851.20
  4. Step 4: Simplify right side
    484,803.20x = 199,873,111,925.76
  5. Step 5: Solve for x
    x = 199,873,111,925.76/484,803.20
  6. Step 6: Final answer
    x = 412,276.80

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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.