Home / 809,315.60-1,213,973.40-336,340.40

Finding the Fourth Proportional to 809,315.60, 1,213,973.40 and 336,340.40

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Solution

The fourth proportional to 809,315.60, 1,213,973.40 and 336,340.40 is: 504,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,315.60 : 1,213,973.40 = 336,340.40 : x
  2. Step 2: Convert to fraction form
    809,315.60/1,213,973.40 = 336,340.40/x
  3. Step 3: Cross multiply
    809,315.60x = 1,213,973.40 × 336,340.40
  4. Step 4: Simplify right side
    809,315.60x = 408,308,298,945.36
  5. Step 5: Solve for x
    x = 408,308,298,945.36/809,315.60
  6. Step 6: Final answer
    x = 504,510.60

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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.