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Finding the Fourth Proportional to 466,426.80, 699,121.80 and 256,215.60

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Solution

The fourth proportional to 466,426.80, 699,121.80 and 256,215.60 is: 384,038.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,426.80 : 699,121.80 = 256,215.60 : x
  2. Step 2: Convert to fraction form
    466,426.80/699,121.80 = 256,215.60/x
  3. Step 3: Cross multiply
    466,426.80x = 699,121.80 × 256,215.60
  4. Step 4: Simplify right side
    466,426.80x = 179,125,911,460.08
  5. Step 5: Solve for x
    x = 179,125,911,460.08/466,426.80
  6. Step 6: Final answer
    x = 384,038.63

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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.