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Finding the Fourth Proportional to 664,815.26, 917,447.52 and 363,009.26

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Solution

The fourth proportional to 664,815.26, 917,447.52 and 363,009.26 is: 500,954.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,815.26 : 917,447.52 = 363,009.26 : x
  2. Step 2: Convert to fraction form
    664,815.26/917,447.52 = 363,009.26/x
  3. Step 3: Cross multiply
    664,815.26x = 917,447.52 × 363,009.26
  4. Step 4: Simplify right side
    664,815.26x = 333,041,945,324.04
  5. Step 5: Solve for x
    x = 333,041,945,324.04/664,815.26
  6. Step 6: Final answer
    x = 500,954.12

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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.