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Finding the Fourth Proportional to 461,065.50, 636,289.83 and 259,861.50

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Solution

The fourth proportional to 461,065.50, 636,289.83 and 259,861.50 is: 358,619.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,065.50 : 636,289.83 = 259,861.50 : x
  2. Step 2: Convert to fraction form
    461,065.50/636,289.83 = 259,861.50/x
  3. Step 3: Cross multiply
    461,065.50x = 636,289.83 × 259,861.50
  4. Step 4: Simplify right side
    461,065.50x = 165,347,229,658.55
  5. Step 5: Solve for x
    x = 165,347,229,658.55/461,065.50
  6. Step 6: Final answer
    x = 358,619.83

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1.5x scale

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.