Home / 819,985.68-1,131,608.34-475,795.62

Finding the Fourth Proportional to 819,985.68, 1,131,608.34 and 475,795.62

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Solution

The fourth proportional to 819,985.68, 1,131,608.34 and 475,795.62 is: 656,614.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,985.68 : 1,131,608.34 = 475,795.62 : x
  2. Step 2: Convert to fraction form
    819,985.68/1,131,608.34 = 475,795.62/x
  3. Step 3: Cross multiply
    819,985.68x = 1,131,608.34 × 475,795.62
  4. Step 4: Simplify right side
    819,985.68x = 538,414,291,727.47
  5. Step 5: Solve for x
    x = 538,414,291,727.47/819,985.68
  6. Step 6: Final answer
    x = 656,614.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.