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Finding the Fourth Proportional to 669,063.78, 923,283.32 and 363,133.60

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Solution

The fourth proportional to 669,063.78, 923,283.32 and 363,133.60 is: 501,110.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,063.78 : 923,283.32 = 363,133.60 : x
  2. Step 2: Convert to fraction form
    669,063.78/923,283.32 = 363,133.60/x
  3. Step 3: Cross multiply
    669,063.78x = 923,283.32 × 363,133.60
  4. Step 4: Simplify right side
    669,063.78x = 335,275,191,687.68
  5. Step 5: Solve for x
    x = 335,275,191,687.68/669,063.78
  6. Step 6: Final answer
    x = 501,110.96

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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.