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Finding the Fourth Proportional to 446,322.33, 615,619.11 and 285,105.78

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Solution

The fourth proportional to 446,322.33, 615,619.11 and 285,105.78 is: 393,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,322.33 : 615,619.11 = 285,105.78 : x
  2. Step 2: Convert to fraction form
    446,322.33/615,619.11 = 285,105.78/x
  3. Step 3: Cross multiply
    446,322.33x = 615,619.11 × 285,105.78
  4. Step 4: Simplify right side
    446,322.33x = 175,516,566,539.46
  5. Step 5: Solve for x
    x = 175,516,566,539.46/446,322.33
  6. Step 6: Final answer
    x = 393,250.70

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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.