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Finding the Fourth Proportional to 263,690.70, 363,885.39 and 148,974.72

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Solution

The fourth proportional to 263,690.70, 363,885.39 and 148,974.72 is: 205,580.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,690.70 : 363,885.39 = 148,974.72 : x
  2. Step 2: Convert to fraction form
    263,690.70/363,885.39 = 148,974.72/x
  3. Step 3: Cross multiply
    263,690.70x = 363,885.39 × 148,974.72
  4. Step 4: Simplify right side
    263,690.70x = 54,209,724,087.34
  5. Step 5: Solve for x
    x = 54,209,724,087.34/263,690.70
  6. Step 6: Final answer
    x = 205,580.72

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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.