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Finding the Fourth Proportional to 484,571.18, 726,056.67 and 281,597.42

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Solution

The fourth proportional to 484,571.18, 726,056.67 and 281,597.42 is: 421,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,571.18 : 726,056.67 = 281,597.42 : x
  2. Step 2: Convert to fraction form
    484,571.18/726,056.67 = 281,597.42/x
  3. Step 3: Cross multiply
    484,571.18x = 726,056.67 × 281,597.42
  4. Step 4: Simplify right side
    484,571.18x = 204,455,685,045.79
  5. Step 5: Solve for x
    x = 204,455,685,045.79/484,571.18
  6. Step 6: Final answer
    x = 421,931.17

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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.