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Finding the Fourth Proportional to 615,463.20, 923,108.40 and 194,781.60

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Solution

The fourth proportional to 615,463.20, 923,108.40 and 194,781.60 is: 292,145.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,463.20 : 923,108.40 = 194,781.60 : x
  2. Step 2: Convert to fraction form
    615,463.20/923,108.40 = 194,781.60/x
  3. Step 3: Cross multiply
    615,463.20x = 923,108.40 × 194,781.60
  4. Step 4: Simplify right side
    615,463.20x = 179,804,531,125.44
  5. Step 5: Solve for x
    x = 179,804,531,125.44/615,463.20
  6. Step 6: Final answer
    x = 292,145.06

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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.