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Finding the Fourth Proportional to 354,775.60, 532,163.40 and 255,631.60

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Solution

The fourth proportional to 354,775.60, 532,163.40 and 255,631.60 is: 383,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,775.60 : 532,163.40 = 255,631.60 : x
  2. Step 2: Convert to fraction form
    354,775.60/532,163.40 = 255,631.60/x
  3. Step 3: Cross multiply
    354,775.60x = 532,163.40 × 255,631.60
  4. Step 4: Simplify right side
    354,775.60x = 136,037,781,403.44
  5. Step 5: Solve for x
    x = 136,037,781,403.44/354,775.60
  6. Step 6: Final answer
    x = 383,447.40

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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.