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Finding the Fourth Proportional to 367,903.60, 550,543.20 and 255,054.40

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Solution

The fourth proportional to 367,903.60, 550,543.20 and 255,054.40 is: 381,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,903.60 : 550,543.20 = 255,054.40 : x
  2. Step 2: Convert to fraction form
    367,903.60/550,543.20 = 255,054.40/x
  3. Step 3: Cross multiply
    367,903.60x = 550,543.20 × 255,054.40
  4. Step 4: Simplify right side
    367,903.60x = 140,418,465,550.08
  5. Step 5: Solve for x
    x = 140,418,465,550.08/367,903.60
  6. Step 6: Final answer
    x = 381,671.90

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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.