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Finding the Fourth Proportional to 475,801.60, 656,605.20 and 274,597.60

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Solution

The fourth proportional to 475,801.60, 656,605.20 and 274,597.60 is: 378,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,801.60 : 656,605.20 = 274,597.60 : x
  2. Step 2: Convert to fraction form
    475,801.60/656,605.20 = 274,597.60/x
  3. Step 3: Cross multiply
    475,801.60x = 656,605.20 × 274,597.60
  4. Step 4: Simplify right side
    475,801.60x = 180,302,212,067.52
  5. Step 5: Solve for x
    x = 180,302,212,067.52/475,801.60
  6. Step 6: Final answer
    x = 378,944.11

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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.