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Finding the Fourth Proportional to 616,196.45, 850,205.37 and 357,919.94

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Solution

The fourth proportional to 616,196.45, 850,205.37 and 357,919.94 is: 493,844.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,196.45 : 850,205.37 = 357,919.94 : x
  2. Step 2: Convert to fraction form
    616,196.45/850,205.37 = 357,919.94/x
  3. Step 3: Cross multiply
    616,196.45x = 850,205.37 × 357,919.94
  4. Step 4: Simplify right side
    616,196.45x = 304,305,450,767.05
  5. Step 5: Solve for x
    x = 304,305,450,767.05/616,196.45
  6. Step 6: Final answer
    x = 493,844.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.