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Finding the Fourth Proportional to 357,446.37, 493,279.39 and 196,304.77

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Solution

The fourth proportional to 357,446.37, 493,279.39 and 196,304.77 is: 270,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,446.37 : 493,279.39 = 196,304.77 : x
  2. Step 2: Convert to fraction form
    357,446.37/493,279.39 = 196,304.77/x
  3. Step 3: Cross multiply
    357,446.37x = 493,279.39 × 196,304.77
  4. Step 4: Simplify right side
    357,446.37x = 96,833,095,839.08
  5. Step 5: Solve for x
    x = 96,833,095,839.08/357,446.37
  6. Step 6: Final answer
    x = 270,902.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.