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Finding the Fourth Proportional to 310,919.20, 466,378.80 and 236,269.60

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Solution

The fourth proportional to 310,919.20, 466,378.80 and 236,269.60 is: 354,404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,919.20 : 466,378.80 = 236,269.60 : x
  2. Step 2: Convert to fraction form
    310,919.20/466,378.80 = 236,269.60/x
  3. Step 3: Cross multiply
    310,919.20x = 466,378.80 × 236,269.60
  4. Step 4: Simplify right side
    310,919.20x = 110,191,132,524.48
  5. Step 5: Solve for x
    x = 110,191,132,524.48/310,919.20
  6. Step 6: Final answer
    x = 354,404.40

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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.