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Finding the Fourth Proportional to 356,685.70, 492,213.07 and 193,338.70

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Solution

The fourth proportional to 356,685.70, 492,213.07 and 193,338.70 is: 266,800.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,685.70 : 492,213.07 = 193,338.70 : x
  2. Step 2: Convert to fraction form
    356,685.70/492,213.07 = 193,338.70/x
  3. Step 3: Cross multiply
    356,685.70x = 492,213.07 × 193,338.70
  4. Step 4: Simplify right side
    356,685.70x = 95,163,835,076.81
  5. Step 5: Solve for x
    x = 95,163,835,076.81/356,685.70
  6. Step 6: Final answer
    x = 266,800.25

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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.