Home / 587,899.74-811,474.30-383,981.84

Finding the Fourth Proportional to 587,899.74, 811,474.30 and 383,981.84

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Solution

The fourth proportional to 587,899.74, 811,474.30 and 383,981.84 is: 530,007.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,899.74 : 811,474.30 = 383,981.84 : x
  2. Step 2: Convert to fraction form
    587,899.74/811,474.30 = 383,981.84/x
  3. Step 3: Cross multiply
    587,899.74x = 811,474.30 × 383,981.84
  4. Step 4: Simplify right side
    587,899.74x = 311,591,389,809.39
  5. Step 5: Solve for x
    x = 311,591,389,809.39/587,899.74
  6. Step 6: Final answer
    x = 530,007.70

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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.