Home / 806,860.20-1,212,914.70-571,830.60

Finding the Fourth Proportional to 806,860.20, 1,212,914.70 and 571,830.60

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Solution

The fourth proportional to 806,860.20, 1,212,914.70 and 571,830.60 is: 859,605.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,860.20 : 1,212,914.70 = 571,830.60 : x
  2. Step 2: Convert to fraction form
    806,860.20/1,212,914.70 = 571,830.60/x
  3. Step 3: Cross multiply
    806,860.20x = 1,212,914.70 × 571,830.60
  4. Step 4: Simplify right side
    806,860.20x = 693,581,740,649.82
  5. Step 5: Solve for x
    x = 693,581,740,649.82/806,860.20
  6. Step 6: Final answer
    x = 859,605.84

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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.