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Finding the Fourth Proportional to 482,976.72, 724,430.88 and 127,982.88

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Solution

The fourth proportional to 482,976.72, 724,430.88 and 127,982.88 is: 191,965.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,976.72 : 724,430.88 = 127,982.88 : x
  2. Step 2: Convert to fraction form
    482,976.72/724,430.88 = 127,982.88/x
  3. Step 3: Cross multiply
    482,976.72x = 724,430.88 × 127,982.88
  4. Step 4: Simplify right side
    482,976.72x = 92,714,750,383.33
  5. Step 5: Solve for x
    x = 92,714,750,383.33/482,976.72
  6. Step 6: Final answer
    x = 191,965.26

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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.