Home / 808,086.40-1,115,125.58-440,555.56

Finding the Fourth Proportional to 808,086.40, 1,115,125.58 and 440,555.56

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Solution

The fourth proportional to 808,086.40, 1,115,125.58 and 440,555.56 is: 607,948.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,086.40 : 1,115,125.58 = 440,555.56 : x
  2. Step 2: Convert to fraction form
    808,086.40/1,115,125.58 = 440,555.56/x
  3. Step 3: Cross multiply
    808,086.40x = 1,115,125.58 × 440,555.56
  4. Step 4: Simplify right side
    808,086.40x = 491,274,774,367.23
  5. Step 5: Solve for x
    x = 491,274,774,367.23/808,086.40
  6. Step 6: Final answer
    x = 607,948.33

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Double scale
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Similar ratio
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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.