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Finding the Fourth Proportional to 636,520.41, 953,911.08 and 351,789.21

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Solution

The fourth proportional to 636,520.41, 953,911.08 and 351,789.21 is: 527,203.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,520.41 : 953,911.08 = 351,789.21 : x
  2. Step 2: Convert to fraction form
    636,520.41/953,911.08 = 351,789.21/x
  3. Step 3: Cross multiply
    636,520.41x = 953,911.08 × 351,789.21
  4. Step 4: Simplify right side
    636,520.41x = 335,575,625,243.45
  5. Step 5: Solve for x
    x = 335,575,625,243.45/636,520.41
  6. Step 6: Final answer
    x = 527,203.24

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1.5x scale

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.