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Finding the Fourth Proportional to 615,090.68, 922,771.48 and 188,685.22

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Solution

The fourth proportional to 615,090.68, 922,771.48 and 188,685.22 is: 283,069.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,090.68 : 922,771.48 = 188,685.22 : x
  2. Step 2: Convert to fraction form
    615,090.68/922,771.48 = 188,685.22/x
  3. Step 3: Cross multiply
    615,090.68x = 922,771.48 × 188,685.22
  4. Step 4: Simplify right side
    615,090.68x = 174,113,339,713.53
  5. Step 5: Solve for x
    x = 174,113,339,713.53/615,090.68
  6. Step 6: Final answer
    x = 283,069.38

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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.