Home / 873,633.28-1,205,414.44-491,520.64

Finding the Fourth Proportional to 873,633.28, 1,205,414.44 and 491,520.64

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Solution

The fourth proportional to 873,633.28, 1,205,414.44 and 491,520.64 is: 678,186.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,633.28 : 1,205,414.44 = 491,520.64 : x
  2. Step 2: Convert to fraction form
    873,633.28/1,205,414.44 = 491,520.64/x
  3. Step 3: Cross multiply
    873,633.28x = 1,205,414.44 × 491,520.64
  4. Step 4: Simplify right side
    873,633.28x = 592,486,077,014.04
  5. Step 5: Solve for x
    x = 592,486,077,014.04/873,633.28
  6. Step 6: Final answer
    x = 678,186.25

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Double scale
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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.