Home / 873,285.88-1,205,070.06-491,239.12

Finding the Fourth Proportional to 873,285.88, 1,205,070.06 and 491,239.12

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Solution

The fourth proportional to 873,285.88, 1,205,070.06 and 491,239.12 is: 677,873.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,285.88 : 1,205,070.06 = 491,239.12 : x
  2. Step 2: Convert to fraction form
    873,285.88/1,205,070.06 = 491,239.12/x
  3. Step 3: Cross multiply
    873,285.88x = 1,205,070.06 × 491,239.12
  4. Step 4: Simplify right side
    873,285.88x = 591,977,555,812.75
  5. Step 5: Solve for x
    x = 591,977,555,812.75/873,285.88
  6. Step 6: Final answer
    x = 677,873.73

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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.