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Finding the Fourth Proportional to 330,656.28, 495,909.90 and 93,993.72

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Solution

The fourth proportional to 330,656.28, 495,909.90 and 93,993.72 is: 140,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,656.28 : 495,909.90 = 93,993.72 : x
  2. Step 2: Convert to fraction form
    330,656.28/495,909.90 = 93,993.72/x
  3. Step 3: Cross multiply
    330,656.28x = 495,909.90 × 93,993.72
  4. Step 4: Simplify right side
    330,656.28x = 46,612,416,285.83
  5. Step 5: Solve for x
    x = 46,612,416,285.83/330,656.28
  6. Step 6: Final answer
    x = 140,969.40

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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.