Home / 579,839.70-869,759.55-540,473.70

Finding the Fourth Proportional to 579,839.70, 869,759.55 and 540,473.70

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Solution

The fourth proportional to 579,839.70, 869,759.55 and 540,473.70 is: 810,710.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,839.70 : 869,759.55 = 540,473.70 : x
  2. Step 2: Convert to fraction form
    579,839.70/869,759.55 = 540,473.70/x
  3. Step 3: Cross multiply
    579,839.70x = 869,759.55 × 540,473.70
  4. Step 4: Simplify right side
    579,839.70x = 470,082,162,098.84
  5. Step 5: Solve for x
    x = 470,082,162,098.84/579,839.70
  6. Step 6: Final answer
    x = 810,710.55

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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.