Home / 669,012.33-923,236.66-378,618.62

Finding the Fourth Proportional to 669,012.33, 923,236.66 and 378,618.62

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Solution

The fourth proportional to 669,012.33, 923,236.66 and 378,618.62 is: 522,493.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,012.33 : 923,236.66 = 378,618.62 : x
  2. Step 2: Convert to fraction form
    669,012.33/923,236.66 = 378,618.62/x
  3. Step 3: Cross multiply
    669,012.33x = 923,236.66 × 378,618.62
  4. Step 4: Simplify right side
    669,012.33x = 349,554,590,128.04
  5. Step 5: Solve for x
    x = 349,554,590,128.04/669,012.33
  6. Step 6: Final answer
    x = 522,493.50

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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.