Home / 809,195.80-1,213,793.70-557,253.40

Finding the Fourth Proportional to 809,195.80, 1,213,793.70 and 557,253.40

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Solution

The fourth proportional to 809,195.80, 1,213,793.70 and 557,253.40 is: 835,880.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,195.80 : 1,213,793.70 = 557,253.40 : x
  2. Step 2: Convert to fraction form
    809,195.80/1,213,793.70 = 557,253.40/x
  3. Step 3: Cross multiply
    809,195.80x = 1,213,793.70 × 557,253.40
  4. Step 4: Simplify right side
    809,195.80x = 676,390,666,223.58
  5. Step 5: Solve for x
    x = 676,390,666,223.58/809,195.80
  6. Step 6: Final answer
    x = 835,880.10

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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.