Home / 813,367.79-1,122,191.06-469,157.59

Finding the Fourth Proportional to 813,367.79, 1,122,191.06 and 469,157.59

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Solution

The fourth proportional to 813,367.79, 1,122,191.06 and 469,157.59 is: 647,289.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,367.79 : 1,122,191.06 = 469,157.59 : x
  2. Step 2: Convert to fraction form
    813,367.79/1,122,191.06 = 469,157.59/x
  3. Step 3: Cross multiply
    813,367.79x = 1,122,191.06 × 469,157.59
  4. Step 4: Simplify right side
    813,367.79x = 526,484,448,077.88
  5. Step 5: Solve for x
    x = 526,484,448,077.88/813,367.79
  6. Step 6: Final answer
    x = 647,289.52

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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.