Home / 806,495.80-1,209,743.70-657,196.60

Finding the Fourth Proportional to 806,495.80, 1,209,743.70 and 657,196.60

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Solution

The fourth proportional to 806,495.80, 1,209,743.70 and 657,196.60 is: 985,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,495.80 : 1,209,743.70 = 657,196.60 : x
  2. Step 2: Convert to fraction form
    806,495.80/1,209,743.70 = 657,196.60/x
  3. Step 3: Cross multiply
    806,495.80x = 1,209,743.70 × 657,196.60
  4. Step 4: Simplify right side
    806,495.80x = 795,039,446,511.42
  5. Step 5: Solve for x
    x = 795,039,446,511.42/806,495.80
  6. Step 6: Final answer
    x = 985,794.90

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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.