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Finding the Fourth Proportional to 620,293.87, 930,569.93 and 193,812.46

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Solution

The fourth proportional to 620,293.87, 930,569.93 and 193,812.46 is: 290,759.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,293.87 : 930,569.93 = 193,812.46 : x
  2. Step 2: Convert to fraction form
    620,293.87/930,569.93 = 193,812.46/x
  3. Step 3: Cross multiply
    620,293.87x = 930,569.93 × 193,812.46
  4. Step 4: Simplify right side
    620,293.87x = 180,356,047,335.33
  5. Step 5: Solve for x
    x = 180,356,047,335.33/620,293.87
  6. Step 6: Final answer
    x = 290,759.04

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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.