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Finding the Fourth Proportional to 416,979.88, 575,435.08 and 225,996.46

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Solution

The fourth proportional to 416,979.88, 575,435.08 and 225,996.46 is: 311,876.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,979.88 : 575,435.08 = 225,996.46 : x
  2. Step 2: Convert to fraction form
    416,979.88/575,435.08 = 225,996.46/x
  3. Step 3: Cross multiply
    416,979.88x = 575,435.08 × 225,996.46
  4. Step 4: Simplify right side
    416,979.88x = 130,046,291,039.82
  5. Step 5: Solve for x
    x = 130,046,291,039.82/416,979.88
  6. Step 6: Final answer
    x = 311,876.66

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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.