Home / 587,983.59-811,765.17-370,378.80

Finding the Fourth Proportional to 587,983.59, 811,765.17 and 370,378.80

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Solution

The fourth proportional to 587,983.59, 811,765.17 and 370,378.80 is: 511,341.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,983.59 : 811,765.17 = 370,378.80 : x
  2. Step 2: Convert to fraction form
    587,983.59/811,765.17 = 370,378.80/x
  3. Step 3: Cross multiply
    587,983.59x = 811,765.17 × 370,378.80
  4. Step 4: Simplify right side
    587,983.59x = 300,660,609,546.40
  5. Step 5: Solve for x
    x = 300,660,609,546.40/587,983.59
  6. Step 6: Final answer
    x = 511,341.84

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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.