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Finding the Fourth Proportional to 416,780.60, 574,945.74 and 263,560.59

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Solution

The fourth proportional to 416,780.60, 574,945.74 and 263,560.59 is: 363,579.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,780.60 : 574,945.74 = 263,560.59 : x
  2. Step 2: Convert to fraction form
    416,780.60/574,945.74 = 263,560.59/x
  3. Step 3: Cross multiply
    416,780.60x = 574,945.74 × 263,560.59
  4. Step 4: Simplify right side
    416,780.60x = 151,533,038,452.39
  5. Step 5: Solve for x
    x = 151,533,038,452.39/416,780.60
  6. Step 6: Final answer
    x = 363,579.88

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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.