Home / 711,979.67-982,528.31-385,292.43

Finding the Fourth Proportional to 711,979.67, 982,528.31 and 385,292.43

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Solution

The fourth proportional to 711,979.67, 982,528.31 and 385,292.43 is: 531,701.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,979.67 : 982,528.31 = 385,292.43 : x
  2. Step 2: Convert to fraction form
    711,979.67/982,528.31 = 385,292.43/x
  3. Step 3: Cross multiply
    711,979.67x = 982,528.31 × 385,292.43
  4. Step 4: Simplify right side
    711,979.67x = 378,560,721,066.92
  5. Step 5: Solve for x
    x = 378,560,721,066.92/711,979.67
  6. Step 6: Final answer
    x = 531,701.59

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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.