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Finding the Fourth Proportional to 616,256.45, 850,355.74 and 361,514.69

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Solution

The fourth proportional to 616,256.45, 850,355.74 and 361,514.69 is: 498,844.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,256.45 : 850,355.74 = 361,514.69 : x
  2. Step 2: Convert to fraction form
    616,256.45/850,355.74 = 361,514.69/x
  3. Step 3: Cross multiply
    616,256.45x = 850,355.74 × 361,514.69
  4. Step 4: Simplify right side
    616,256.45x = 307,416,091,735.82
  5. Step 5: Solve for x
    x = 307,416,091,735.82/616,256.45
  6. Step 6: Final answer
    x = 498,844.42

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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.