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Finding the Fourth Proportional to 617,185.35, 925,778.03 and 512,209.35

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Solution

The fourth proportional to 617,185.35, 925,778.03 and 512,209.35 is: 768,314.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,185.35 : 925,778.03 = 512,209.35 : x
  2. Step 2: Convert to fraction form
    617,185.35/925,778.03 = 512,209.35/x
  3. Step 3: Cross multiply
    617,185.35x = 925,778.03 × 512,209.35
  4. Step 4: Simplify right side
    617,185.35x = 474,192,160,429.53
  5. Step 5: Solve for x
    x = 474,192,160,429.53/617,185.35
  6. Step 6: Final answer
    x = 768,314.03

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Double scale
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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.