Home / 813,539.88-1,122,726.24-469,247.76

Finding the Fourth Proportional to 813,539.88, 1,122,726.24 and 469,247.76

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Solution

The fourth proportional to 813,539.88, 1,122,726.24 and 469,247.76 is: 647,585.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,539.88 : 1,122,726.24 = 469,247.76 : x
  2. Step 2: Convert to fraction form
    813,539.88/1,122,726.24 = 469,247.76/x
  3. Step 3: Cross multiply
    813,539.88x = 1,122,726.24 × 469,247.76
  4. Step 4: Simplify right side
    813,539.88x = 526,836,773,213.22
  5. Step 5: Solve for x
    x = 526,836,773,213.22/813,539.88
  6. Step 6: Final answer
    x = 647,585.68

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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.