Home / 654,721.29-982,123.45-205,459.89

Finding the Fourth Proportional to 654,721.29, 982,123.45 and 205,459.89

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Solution

The fourth proportional to 654,721.29, 982,123.45 and 205,459.89 is: 308,202.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,721.29 : 982,123.45 = 205,459.89 : x
  2. Step 2: Convert to fraction form
    654,721.29/982,123.45 = 205,459.89/x
  3. Step 3: Cross multiply
    654,721.29x = 982,123.45 × 205,459.89
  4. Step 4: Simplify right side
    654,721.29x = 201,786,976,003.42
  5. Step 5: Solve for x
    x = 201,786,976,003.42/654,721.29
  6. Step 6: Final answer
    x = 308,202.86

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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.