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Finding the Fourth Proportional to 615,953.97, 923,770.58 and 260,785.17

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Solution

The fourth proportional to 615,953.97, 923,770.58 and 260,785.17 is: 391,109.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,953.97 : 923,770.58 = 260,785.17 : x
  2. Step 2: Convert to fraction form
    615,953.97/923,770.58 = 260,785.17/x
  3. Step 3: Cross multiply
    615,953.97x = 923,770.58 × 260,785.17
  4. Step 4: Simplify right side
    615,953.97x = 240,905,666,442.37
  5. Step 5: Solve for x
    x = 240,905,666,442.37/615,953.97
  6. Step 6: Final answer
    x = 391,109.85

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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.