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Finding the Fourth Proportional to 356,900.33, 492,352.69 and 213,632.70

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Solution

The fourth proportional to 356,900.33, 492,352.69 and 213,632.70 is: 294,711.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,900.33 : 492,352.69 = 213,632.70 : x
  2. Step 2: Convert to fraction form
    356,900.33/492,352.69 = 213,632.70/x
  3. Step 3: Cross multiply
    356,900.33x = 492,352.69 × 213,632.70
  4. Step 4: Simplify right side
    356,900.33x = 105,182,634,516.96
  5. Step 5: Solve for x
    x = 105,182,634,516.96/356,900.33
  6. Step 6: Final answer
    x = 294,711.51

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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.