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Finding the Fourth Proportional to 445,811.11, 615,073.91 and 252,200.12

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Solution

The fourth proportional to 445,811.11, 615,073.91 and 252,200.12 is: 347,953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,811.11 : 615,073.91 = 252,200.12 : x
  2. Step 2: Convert to fraction form
    445,811.11/615,073.91 = 252,200.12/x
  3. Step 3: Cross multiply
    445,811.11x = 615,073.91 × 252,200.12
  4. Step 4: Simplify right side
    445,811.11x = 155,121,709,574.50
  5. Step 5: Solve for x
    x = 155,121,709,574.50/445,811.11
  6. Step 6: Final answer
    x = 347,953.89

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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.