Home / 711,789.21-982,519.07-440,065.53

Finding the Fourth Proportional to 711,789.21, 982,519.07 and 440,065.53

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Solution

The fourth proportional to 711,789.21, 982,519.07 and 440,065.53 is: 607,444.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,789.21 : 982,519.07 = 440,065.53 : x
  2. Step 2: Convert to fraction form
    711,789.21/982,519.07 = 440,065.53/x
  3. Step 3: Cross multiply
    711,789.21x = 982,519.07 × 440,065.53
  4. Step 4: Simplify right side
    711,789.21x = 432,372,773,074.33
  5. Step 5: Solve for x
    x = 432,372,773,074.33/711,789.21
  6. Step 6: Final answer
    x = 607,444.97

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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.