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Finding the Fourth Proportional to 416,618.88, 574,991.28 and 255,445.44

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Solution

The fourth proportional to 416,618.88, 574,991.28 and 255,445.44 is: 352,549.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,618.88 : 574,991.28 = 255,445.44 : x
  2. Step 2: Convert to fraction form
    416,618.88/574,991.28 = 255,445.44/x
  3. Step 3: Cross multiply
    416,618.88x = 574,991.28 × 255,445.44
  4. Step 4: Simplify right side
    416,618.88x = 146,878,900,515.76
  5. Step 5: Solve for x
    x = 146,878,900,515.76/416,618.88
  6. Step 6: Final answer
    x = 352,549.79

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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.