Home / 873,618.38-1,205,393.91-491,505.74

Finding the Fourth Proportional to 873,618.38, 1,205,393.91 and 491,505.74

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Solution

The fourth proportional to 873,618.38, 1,205,393.91 and 491,505.74 is: 678,165.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,618.38 : 1,205,393.91 = 491,505.74 : x
  2. Step 2: Convert to fraction form
    873,618.38/1,205,393.91 = 491,505.74/x
  3. Step 3: Cross multiply
    873,618.38x = 1,205,393.91 × 491,505.74
  4. Step 4: Simplify right side
    873,618.38x = 592,458,025,726.04
  5. Step 5: Solve for x
    x = 592,458,025,726.04/873,618.38
  6. Step 6: Final answer
    x = 678,165.71

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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.