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Finding the Fourth Proportional to 379,325.43, 523,505.30 and 207,269.54

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Solution

The fourth proportional to 379,325.43, 523,505.30 and 207,269.54 is: 286,051.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,325.43 : 523,505.30 = 207,269.54 : x
  2. Step 2: Convert to fraction form
    379,325.43/523,505.30 = 207,269.54/x
  3. Step 3: Cross multiply
    379,325.43x = 523,505.30 × 207,269.54
  4. Step 4: Simplify right side
    379,325.43x = 108,506,699,064.69
  5. Step 5: Solve for x
    x = 108,506,699,064.69/379,325.43
  6. Step 6: Final answer
    x = 286,051.74

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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.