Home / 591,719.84-816,573.48-319,786.84

Finding the Fourth Proportional to 591,719.84, 816,573.48 and 319,786.84

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Solution

The fourth proportional to 591,719.84, 816,573.48 and 319,786.84 is: 441,305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,719.84 : 816,573.48 = 319,786.84 : x
  2. Step 2: Convert to fraction form
    591,719.84/816,573.48 = 319,786.84/x
  3. Step 3: Cross multiply
    591,719.84x = 816,573.48 × 319,786.84
  4. Step 4: Simplify right side
    591,719.84x = 261,129,452,797.00
  5. Step 5: Solve for x
    x = 261,129,452,797.00/591,719.84
  6. Step 6: Final answer
    x = 441,305.89

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Half scale
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Double scale
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Similar ratio
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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.