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Finding the Fourth Proportional to 305,257.02, 457,770.51 and 127,776.30

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Solution

The fourth proportional to 305,257.02, 457,770.51 and 127,776.30 is: 191,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,257.02 : 457,770.51 = 127,776.30 : x
  2. Step 2: Convert to fraction form
    305,257.02/457,770.51 = 127,776.30/x
  3. Step 3: Cross multiply
    305,257.02x = 457,770.51 × 127,776.30
  4. Step 4: Simplify right side
    305,257.02x = 58,492,222,016.91
  5. Step 5: Solve for x
    x = 58,492,222,016.91/305,257.02
  6. Step 6: Final answer
    x = 191,616.30

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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.