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Finding the Fourth Proportional to 356,836.75, 492,434.72 and 197,860.75

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Solution

The fourth proportional to 356,836.75, 492,434.72 and 197,860.75 is: 273,047.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,836.75 : 492,434.72 = 197,860.75 : x
  2. Step 2: Convert to fraction form
    356,836.75/492,434.72 = 197,860.75/x
  3. Step 3: Cross multiply
    356,836.75x = 492,434.72 × 197,860.75
  4. Step 4: Simplify right side
    356,836.75x = 97,433,502,035.94
  5. Step 5: Solve for x
    x = 97,433,502,035.94/356,836.75
  6. Step 6: Final answer
    x = 273,047.84

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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.