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Finding the Fourth Proportional to 360,778.60, 541,354.64 and 261,756.10

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Solution

The fourth proportional to 360,778.60, 541,354.64 and 261,756.10 is: 392,769.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,778.60 : 541,354.64 = 261,756.10 : x
  2. Step 2: Convert to fraction form
    360,778.60/541,354.64 = 261,756.10/x
  3. Step 3: Cross multiply
    360,778.60x = 541,354.64 × 261,756.10
  4. Step 4: Simplify right side
    360,778.60x = 141,702,879,283.30
  5. Step 5: Solve for x
    x = 141,702,879,283.30/360,778.60
  6. Step 6: Final answer
    x = 392,769.64

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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.