Home / 890,889.85-1,229,606.67-528,514.90

Finding the Fourth Proportional to 890,889.85, 1,229,606.67 and 528,514.90

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Solution

The fourth proportional to 890,889.85, 1,229,606.67 and 528,514.90 is: 729,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,889.85 : 1,229,606.67 = 528,514.90 : x
  2. Step 2: Convert to fraction form
    890,889.85/1,229,606.67 = 528,514.90/x
  3. Step 3: Cross multiply
    890,889.85x = 1,229,606.67 × 528,514.90
  4. Step 4: Simplify right side
    890,889.85x = 649,865,446,234.38
  5. Step 5: Solve for x
    x = 649,865,446,234.38/890,889.85
  6. Step 6: Final answer
    x = 729,456.56

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Double scale
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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.