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Finding the Fourth Proportional to 474,153.38, 711,230.70 and 193,670.72

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Solution

The fourth proportional to 474,153.38, 711,230.70 and 193,670.72 is: 290,506.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,153.38 : 711,230.70 = 193,670.72 : x
  2. Step 2: Convert to fraction form
    474,153.38/711,230.70 = 193,670.72/x
  3. Step 3: Cross multiply
    474,153.38x = 711,230.70 × 193,670.72
  4. Step 4: Simplify right side
    474,153.38x = 137,744,561,755.10
  5. Step 5: Solve for x
    x = 137,744,561,755.10/474,153.38
  6. Step 6: Final answer
    x = 290,506.34

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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.