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Finding the Fourth Proportional to 410,379.86, 615,786.54 and 291,206.88

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Solution

The fourth proportional to 410,379.86, 615,786.54 and 291,206.88 is: 436,964.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,379.86 : 615,786.54 = 291,206.88 : x
  2. Step 2: Convert to fraction form
    410,379.86/615,786.54 = 291,206.88/x
  3. Step 3: Cross multiply
    410,379.86x = 615,786.54 × 291,206.88
  4. Step 4: Simplify right side
    410,379.86x = 179,321,277,059.40
  5. Step 5: Solve for x
    x = 179,321,277,059.40/410,379.86
  6. Step 6: Final answer
    x = 436,964.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.