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Finding the Fourth Proportional to 555,217.30, 766,200.14 and 300,568.51

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Solution

The fourth proportional to 555,217.30, 766,200.14 and 300,568.51 is: 414,784.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,217.30 : 766,200.14 = 300,568.51 : x
  2. Step 2: Convert to fraction form
    555,217.30/766,200.14 = 300,568.51/x
  3. Step 3: Cross multiply
    555,217.30x = 766,200.14 × 300,568.51
  4. Step 4: Simplify right side
    555,217.30x = 230,295,634,441.59
  5. Step 5: Solve for x
    x = 230,295,634,441.59/555,217.30
  6. Step 6: Final answer
    x = 414,784.69

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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.