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Finding the Fourth Proportional to 615,490.12, 923,354.70 and 236,383

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Solution

The fourth proportional to 615,490.12, 923,354.70 and 236,383 is: 354,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,490.12 : 923,354.70 = 236,383 : x
  2. Step 2: Convert to fraction form
    615,490.12/923,354.70 = 236,383/x
  3. Step 3: Cross multiply
    615,490.12x = 923,354.70 × 236,383
  4. Step 4: Simplify right side
    615,490.12x = 218,265,354,050.10
  5. Step 5: Solve for x
    x = 218,265,354,050.10/615,490.12
  6. Step 6: Final answer
    x = 354,620.40

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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.