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Finding the Fourth Proportional to 466,438.80, 699,139.80 and 256,227.60

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Solution

The fourth proportional to 466,438.80, 699,139.80 and 256,227.60 is: 384,056.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,438.80 : 699,139.80 = 256,227.60 : x
  2. Step 2: Convert to fraction form
    466,438.80/699,139.80 = 256,227.60/x
  3. Step 3: Cross multiply
    466,438.80x = 699,139.80 × 256,227.60
  4. Step 4: Simplify right side
    466,438.80x = 179,138,913,018.48
  5. Step 5: Solve for x
    x = 179,138,913,018.48/466,438.80
  6. Step 6: Final answer
    x = 384,056.63

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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.