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Finding the Fourth Proportional to 455,282.80, 682,924.20 and 155,663.80

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Solution

The fourth proportional to 455,282.80, 682,924.20 and 155,663.80 is: 233,495.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,282.80 : 682,924.20 = 155,663.80 : x
  2. Step 2: Convert to fraction form
    455,282.80/682,924.20 = 155,663.80/x
  3. Step 3: Cross multiply
    455,282.80x = 682,924.20 × 155,663.80
  4. Step 4: Simplify right side
    455,282.80x = 106,306,576,083.96
  5. Step 5: Solve for x
    x = 106,306,576,083.96/455,282.80
  6. Step 6: Final answer
    x = 233,495.70

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Similar ratio
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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.