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Finding the Fourth Proportional to 615,261.88, 922,588.81 and 188,695.43

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Solution

The fourth proportional to 615,261.88, 922,588.81 and 188,695.43 is: 282,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,261.88 : 922,588.81 = 188,695.43 : x
  2. Step 2: Convert to fraction form
    615,261.88/922,588.81 = 188,695.43/x
  3. Step 3: Cross multiply
    615,261.88x = 922,588.81 × 188,695.43
  4. Step 4: Simplify right side
    615,261.88x = 174,088,287,131.46
  5. Step 5: Solve for x
    x = 174,088,287,131.46/615,261.88
  6. Step 6: Final answer
    x = 282,949.90

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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.