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Finding the Fourth Proportional to 455,956.13, 683,934.21 and 123,532.13

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Solution

The fourth proportional to 455,956.13, 683,934.21 and 123,532.13 is: 185,298.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,956.13 : 683,934.21 = 123,532.13 : x
  2. Step 2: Convert to fraction form
    455,956.13/683,934.21 = 123,532.13/x
  3. Step 3: Cross multiply
    455,956.13x = 683,934.21 × 123,532.13
  4. Step 4: Simplify right side
    455,956.13x = 84,487,846,321.50
  5. Step 5: Solve for x
    x = 84,487,846,321.50/455,956.13
  6. Step 6: Final answer
    x = 185,298.19

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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.