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Finding the Fourth Proportional to 416,918.76, 575,343.99 and 225,933.72

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Solution

The fourth proportional to 416,918.76, 575,343.99 and 225,933.72 is: 311,786.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,918.76 : 575,343.99 = 225,933.72 : x
  2. Step 2: Convert to fraction form
    416,918.76/575,343.99 = 225,933.72/x
  3. Step 3: Cross multiply
    416,918.76x = 575,343.99 × 225,933.72
  4. Step 4: Simplify right side
    416,918.76x = 129,989,607,940.34
  5. Step 5: Solve for x
    x = 129,989,607,940.34/416,918.76
  6. Step 6: Final answer
    x = 311,786.42

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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.