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Finding the Fourth Proportional to 623,259.75, 860,166.80 and 361,672.68

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Solution

The fourth proportional to 623,259.75, 860,166.80 and 361,672.68 is: 499,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,259.75 : 860,166.80 = 361,672.68 : x
  2. Step 2: Convert to fraction form
    623,259.75/860,166.80 = 361,672.68/x
  3. Step 3: Cross multiply
    623,259.75x = 860,166.80 × 361,672.68
  4. Step 4: Simplify right side
    623,259.75x = 311,098,834,576.56
  5. Step 5: Solve for x
    x = 311,098,834,576.56/623,259.75
  6. Step 6: Final answer
    x = 499,147.96

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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.