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Finding the Fourth Proportional to 615,628.40, 923,432.52 and 194,903.60

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Solution

The fourth proportional to 615,628.40, 923,432.52 and 194,903.60 is: 292,352.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,628.40 : 923,432.52 = 194,903.60 : x
  2. Step 2: Convert to fraction form
    615,628.40/923,432.52 = 194,903.60/x
  3. Step 3: Cross multiply
    615,628.40x = 923,432.52 × 194,903.60
  4. Step 4: Simplify right side
    615,628.40x = 179,980,322,505.07
  5. Step 5: Solve for x
    x = 179,980,322,505.07/615,628.40
  6. Step 6: Final answer
    x = 292,352.21

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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.