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Finding the Fourth Proportional to 666,205.38, 999,688.97 and 281,923.97

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Solution

The fourth proportional to 666,205.38, 999,688.97 and 281,923.97 is: 423,047.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,205.38 : 999,688.97 = 281,923.97 : x
  2. Step 2: Convert to fraction form
    666,205.38/999,688.97 = 281,923.97/x
  3. Step 3: Cross multiply
    666,205.38x = 999,688.97 × 281,923.97
  4. Step 4: Simplify right side
    666,205.38x = 281,836,276,779.55
  5. Step 5: Solve for x
    x = 281,836,276,779.55/666,205.38
  6. Step 6: Final answer
    x = 423,047.13

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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.