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Finding the Fourth Proportional to 295,298.20, 407,369.82 and 193,278.76

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Solution

The fourth proportional to 295,298.20, 407,369.82 and 193,278.76 is: 266,631.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,298.20 : 407,369.82 = 193,278.76 : x
  2. Step 2: Convert to fraction form
    295,298.20/407,369.82 = 193,278.76/x
  3. Step 3: Cross multiply
    295,298.20x = 407,369.82 × 193,278.76
  4. Step 4: Simplify right side
    295,298.20x = 78,735,933,671.02
  5. Step 5: Solve for x
    x = 78,735,933,671.02/295,298.20
  6. Step 6: Final answer
    x = 266,631.95

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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.