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Finding the Fourth Proportional to 474,388.10, 711,581.58 and 154,539.45

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Solution

The fourth proportional to 474,388.10, 711,581.58 and 154,539.45 is: 231,808.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,388.10 : 711,581.58 = 154,539.45 : x
  2. Step 2: Convert to fraction form
    474,388.10/711,581.58 = 154,539.45/x
  3. Step 3: Cross multiply
    474,388.10x = 711,581.58 × 154,539.45
  4. Step 4: Simplify right side
    474,388.10x = 109,967,426,003.33
  5. Step 5: Solve for x
    x = 109,967,426,003.33/474,388.10
  6. Step 6: Final answer
    x = 231,808.99

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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.