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Finding the Fourth Proportional to 260,998.20, 391,497.30 and 176,798.70

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Solution

The fourth proportional to 260,998.20, 391,497.30 and 176,798.70 is: 265,198.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,998.20 : 391,497.30 = 176,798.70 : x
  2. Step 2: Convert to fraction form
    260,998.20/391,497.30 = 176,798.70/x
  3. Step 3: Cross multiply
    260,998.20x = 391,497.30 × 176,798.70
  4. Step 4: Simplify right side
    260,998.20x = 69,216,213,693.51
  5. Step 5: Solve for x
    x = 69,216,213,693.51/260,998.20
  6. Step 6: Final answer
    x = 265,198.05

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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.