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Finding the Fourth Proportional to 415,274.63, 573,080.81 and 240,879.20

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Solution

The fourth proportional to 415,274.63, 573,080.81 and 240,879.20 is: 332,414.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,274.63 : 573,080.81 = 240,879.20 : x
  2. Step 2: Convert to fraction form
    415,274.63/573,080.81 = 240,879.20/x
  3. Step 3: Cross multiply
    415,274.63x = 573,080.81 × 240,879.20
  4. Step 4: Simplify right side
    415,274.63x = 138,043,242,978.35
  5. Step 5: Solve for x
    x = 138,043,242,978.35/415,274.63
  6. Step 6: Final answer
    x = 332,414.35

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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.