Home / 654,255.14-981,381.48-205,010.45

Finding the Fourth Proportional to 654,255.14, 981,381.48 and 205,010.45

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Solution

The fourth proportional to 654,255.14, 981,381.48 and 205,010.45 is: 307,515.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,255.14 : 981,381.48 = 205,010.45 : x
  2. Step 2: Convert to fraction form
    654,255.14/981,381.48 = 205,010.45/x
  3. Step 3: Cross multiply
    654,255.14x = 981,381.48 × 205,010.45
  4. Step 4: Simplify right side
    654,255.14x = 201,193,453,929.56
  5. Step 5: Solve for x
    x = 201,193,453,929.56/654,255.14
  6. Step 6: Final answer
    x = 307,515.28

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.