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Finding the Fourth Proportional to 615,615.10, 923,422.65 and 194,923.90

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Solution

The fourth proportional to 615,615.10, 923,422.65 and 194,923.90 is: 292,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,615.10 : 923,422.65 = 194,923.90 : x
  2. Step 2: Convert to fraction form
    615,615.10/923,422.65 = 194,923.90/x
  3. Step 3: Cross multiply
    615,615.10x = 923,422.65 × 194,923.90
  4. Step 4: Simplify right side
    615,615.10x = 179,997,144,286.34
  5. Step 5: Solve for x
    x = 179,997,144,286.34/615,615.10
  6. Step 6: Final answer
    x = 292,385.85

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Similar ratio
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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.