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Finding the Fourth Proportional to 616,355.92, 850,668.78 and 374,714.20

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Solution

The fourth proportional to 616,355.92, 850,668.78 and 374,714.20 is: 517,164.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,355.92 : 850,668.78 = 374,714.20 : x
  2. Step 2: Convert to fraction form
    616,355.92/850,668.78 = 374,714.20/x
  3. Step 3: Cross multiply
    616,355.92x = 850,668.78 × 374,714.20
  4. Step 4: Simplify right side
    616,355.92x = 318,757,671,362.68
  5. Step 5: Solve for x
    x = 318,757,671,362.68/616,355.92
  6. Step 6: Final answer
    x = 517,164.94

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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.