Home / 814,357.23-1,221,535.86-441,109.23

Finding the Fourth Proportional to 814,357.23, 1,221,535.86 and 441,109.23

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Solution

The fourth proportional to 814,357.23, 1,221,535.86 and 441,109.23 is: 661,663.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,357.23 : 1,221,535.86 = 441,109.23 : x
  2. Step 2: Convert to fraction form
    814,357.23/1,221,535.86 = 441,109.23/x
  3. Step 3: Cross multiply
    814,357.23x = 1,221,535.86 × 441,109.23
  4. Step 4: Simplify right side
    814,357.23x = 538,830,742,621.99
  5. Step 5: Solve for x
    x = 538,830,742,621.99/814,357.23
  6. Step 6: Final answer
    x = 661,663.85

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.