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Finding the Fourth Proportional to 507,155.79, 699,883.60 and 277,709.42

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Solution

The fourth proportional to 507,155.79, 699,883.60 and 277,709.42 is: 383,243.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,155.79 : 699,883.60 = 277,709.42 : x
  2. Step 2: Convert to fraction form
    507,155.79/699,883.60 = 277,709.42/x
  3. Step 3: Cross multiply
    507,155.79x = 699,883.60 × 277,709.42
  4. Step 4: Simplify right side
    507,155.79x = 194,364,267,234.97
  5. Step 5: Solve for x
    x = 194,364,267,234.97/507,155.79
  6. Step 6: Final answer
    x = 383,243.71

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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.