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Finding the Fourth Proportional to 539,806.50, 744,998.58 and 313,452

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Solution

The fourth proportional to 539,806.50, 744,998.58 and 313,452 is: 432,601.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,806.50 : 744,998.58 = 313,452 : x
  2. Step 2: Convert to fraction form
    539,806.50/744,998.58 = 313,452/x
  3. Step 3: Cross multiply
    539,806.50x = 744,998.58 × 313,452
  4. Step 4: Simplify right side
    539,806.50x = 233,521,294,898.16
  5. Step 5: Solve for x
    x = 233,521,294,898.16/539,806.50
  6. Step 6: Final answer
    x = 432,601.86

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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.