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Finding the Fourth Proportional to 450,761.60, 675,159.84 and 225,729.56

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Solution

The fourth proportional to 450,761.60, 675,159.84 and 225,729.56 is: 338,102.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,761.60 : 675,159.84 = 225,729.56 : x
  2. Step 2: Convert to fraction form
    450,761.60/675,159.84 = 225,729.56/x
  3. Step 3: Cross multiply
    450,761.60x = 675,159.84 × 225,729.56
  4. Step 4: Simplify right side
    450,761.60x = 152,403,533,612.87
  5. Step 5: Solve for x
    x = 152,403,533,612.87/450,761.60
  6. Step 6: Final answer
    x = 338,102.30

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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.