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Finding the Fourth Proportional to 260,663.06, 391,017.38 and 73,674.56

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Solution

The fourth proportional to 260,663.06, 391,017.38 and 73,674.56 is: 110,518.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,663.06 : 391,017.38 = 73,674.56 : x
  2. Step 2: Convert to fraction form
    260,663.06/391,017.38 = 73,674.56/x
  3. Step 3: Cross multiply
    260,663.06x = 391,017.38 × 73,674.56
  4. Step 4: Simplify right side
    260,663.06x = 28,808,034,033.02
  5. Step 5: Solve for x
    x = 28,808,034,033.02/260,663.06
  6. Step 6: Final answer
    x = 110,518.28

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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.