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Finding the Fourth Proportional to 507,471.35, 700,311 and 274,898.82

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Solution

The fourth proportional to 507,471.35, 700,311 and 274,898.82 is: 379,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,471.35 : 700,311 = 274,898.82 : x
  2. Step 2: Convert to fraction form
    507,471.35/700,311 = 274,898.82/x
  3. Step 3: Cross multiply
    507,471.35x = 700,311 × 274,898.82
  4. Step 4: Simplify right side
    507,471.35x = 192,514,667,533.02
  5. Step 5: Solve for x
    x = 192,514,667,533.02/507,471.35
  6. Step 6: Final answer
    x = 379,360.67

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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.