Home / 873,321.20-1,205,170.91-491,347.07

Finding the Fourth Proportional to 873,321.20, 1,205,170.91 and 491,347.07

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Solution

The fourth proportional to 873,321.20, 1,205,170.91 and 491,347.07 is: 678,052.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,321.20 : 1,205,170.91 = 491,347.07 : x
  2. Step 2: Convert to fraction form
    873,321.20/1,205,170.91 = 491,347.07/x
  3. Step 3: Cross multiply
    873,321.20x = 1,205,170.91 × 491,347.07
  4. Step 4: Simplify right side
    873,321.20x = 592,157,198,212.57
  5. Step 5: Solve for x
    x = 592,157,198,212.57/873,321.20
  6. Step 6: Final answer
    x = 678,052.01

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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.