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Finding the Fourth Proportional to 474,544.61, 654,770.28 and 281,013.11

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Solution

The fourth proportional to 474,544.61, 654,770.28 and 281,013.11 is: 387,738.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,544.61 : 654,770.28 = 281,013.11 : x
  2. Step 2: Convert to fraction form
    474,544.61/654,770.28 = 281,013.11/x
  3. Step 3: Cross multiply
    474,544.61x = 654,770.28 × 281,013.11
  4. Step 4: Simplify right side
    474,544.61x = 183,999,036,636.79
  5. Step 5: Solve for x
    x = 183,999,036,636.79/474,544.61
  6. Step 6: Final answer
    x = 387,738.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.