Home / 812,016.79-1,217,996.02-212,973.19

Finding the Fourth Proportional to 812,016.79, 1,217,996.02 and 212,973.19

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Solution

The fourth proportional to 812,016.79, 1,217,996.02 and 212,973.19 is: 319,452.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,016.79 : 1,217,996.02 = 212,973.19 : x
  2. Step 2: Convert to fraction form
    812,016.79/1,217,996.02 = 212,973.19/x
  3. Step 3: Cross multiply
    812,016.79x = 1,217,996.02 × 212,973.19
  4. Step 4: Simplify right side
    812,016.79x = 259,400,497,786.70
  5. Step 5: Solve for x
    x = 259,400,497,786.70/812,016.79
  6. Step 6: Final answer
    x = 319,452.14

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Double scale
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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.