Home / 680,569.75-939,186.26-378,835.03

Finding the Fourth Proportional to 680,569.75, 939,186.26 and 378,835.03

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Solution

The fourth proportional to 680,569.75, 939,186.26 and 378,835.03 is: 522,792.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,569.75 : 939,186.26 = 378,835.03 : x
  2. Step 2: Convert to fraction form
    680,569.75/939,186.26 = 378,835.03/x
  3. Step 3: Cross multiply
    680,569.75x = 939,186.26 × 378,835.03
  4. Step 4: Simplify right side
    680,569.75x = 355,796,654,982.69
  5. Step 5: Solve for x
    x = 355,796,654,982.69/680,569.75
  6. Step 6: Final answer
    x = 522,792.34

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1.5x scale

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.