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Finding the Fourth Proportional to 508,038, 701,116.74 and 281,683.50

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Solution

The fourth proportional to 508,038, 701,116.74 and 281,683.50 is: 388,736.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,038 : 701,116.74 = 281,683.50 : x
  2. Step 2: Convert to fraction form
    508,038/701,116.74 = 281,683.50/x
  3. Step 3: Cross multiply
    508,038x = 701,116.74 × 281,683.50
  4. Step 4: Simplify right side
    508,038x = 197,493,017,231.79
  5. Step 5: Solve for x
    x = 197,493,017,231.79/508,038
  6. Step 6: Final answer
    x = 388,736.70

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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.