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Finding the Fourth Proportional to 615,905.70, 923,858.55 and 363,963.30

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Solution

The fourth proportional to 615,905.70, 923,858.55 and 363,963.30 is: 545,944.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,905.70 : 923,858.55 = 363,963.30 : x
  2. Step 2: Convert to fraction form
    615,905.70/923,858.55 = 363,963.30/x
  3. Step 3: Cross multiply
    615,905.70x = 923,858.55 × 363,963.30
  4. Step 4: Simplify right side
    615,905.70x = 336,250,606,591.22
  5. Step 5: Solve for x
    x = 336,250,606,591.22/615,905.70
  6. Step 6: Final answer
    x = 545,944.95

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1.5x scale

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.