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Finding the Fourth Proportional to 506,295.36, 759,486.60 and 132,318

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Solution

The fourth proportional to 506,295.36, 759,486.60 and 132,318 is: 198,488.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,295.36 : 759,486.60 = 132,318 : x
  2. Step 2: Convert to fraction form
    506,295.36/759,486.60 = 132,318/x
  3. Step 3: Cross multiply
    506,295.36x = 759,486.60 × 132,318
  4. Step 4: Simplify right side
    506,295.36x = 100,493,747,938.80
  5. Step 5: Solve for x
    x = 100,493,747,938.80/506,295.36
  6. Step 6: Final answer
    x = 198,488.38

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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.