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Finding the Fourth Proportional to 455,815.62, 683,256.81 and 230,758.74

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Solution

The fourth proportional to 455,815.62, 683,256.81 and 230,758.74 is: 345,901.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,815.62 : 683,256.81 = 230,758.74 : x
  2. Step 2: Convert to fraction form
    455,815.62/683,256.81 = 230,758.74/x
  3. Step 3: Cross multiply
    455,815.62x = 683,256.81 × 230,758.74
  4. Step 4: Simplify right side
    455,815.62x = 157,667,480,572.02
  5. Step 5: Solve for x
    x = 157,667,480,572.02/455,815.62
  6. Step 6: Final answer
    x = 345,901.88

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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.