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Finding the Fourth Proportional to 615,416.64, 923,258.44 and 188,953.92

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Solution

The fourth proportional to 615,416.64, 923,258.44 and 188,953.92 is: 283,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,416.64 : 923,258.44 = 188,953.92 : x
  2. Step 2: Convert to fraction form
    615,416.64/923,258.44 = 188,953.92/x
  3. Step 3: Cross multiply
    615,416.64x = 923,258.44 × 188,953.92
  4. Step 4: Simplify right side
    615,416.64x = 174,453,301,411.09
  5. Step 5: Solve for x
    x = 174,453,301,411.09/615,416.64
  6. Step 6: Final answer
    x = 283,471.86

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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.