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Finding the Fourth Proportional to 361,416.80, 541,606.80 and 265,901.60

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Solution

The fourth proportional to 361,416.80, 541,606.80 and 265,901.60 is: 398,471.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,416.80 : 541,606.80 = 265,901.60 : x
  2. Step 2: Convert to fraction form
    361,416.80/541,606.80 = 265,901.60/x
  3. Step 3: Cross multiply
    361,416.80x = 541,606.80 × 265,901.60
  4. Step 4: Simplify right side
    361,416.80x = 144,014,114,690.88
  5. Step 5: Solve for x
    x = 144,014,114,690.88/361,416.80
  6. Step 6: Final answer
    x = 398,471.00

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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.