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Finding the Fourth Proportional to 410,611.20, 616,377.60 and 317,529.60

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Solution

The fourth proportional to 410,611.20, 616,377.60 and 317,529.60 is: 476,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,611.20 : 616,377.60 = 317,529.60 : x
  2. Step 2: Convert to fraction form
    410,611.20/616,377.60 = 317,529.60/x
  3. Step 3: Cross multiply
    410,611.20x = 616,377.60 × 317,529.60
  4. Step 4: Simplify right side
    410,611.20x = 195,718,132,776.96
  5. Step 5: Solve for x
    x = 195,718,132,776.96/410,611.20
  6. Step 6: Final answer
    x = 476,650.74

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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.