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Finding the Fourth Proportional to 206,688.40, 310,032.60 and 196,846.90

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Solution

The fourth proportional to 206,688.40, 310,032.60 and 196,846.90 is: 295,270.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,688.40 : 310,032.60 = 196,846.90 : x
  2. Step 2: Convert to fraction form
    206,688.40/310,032.60 = 196,846.90/x
  3. Step 3: Cross multiply
    206,688.40x = 310,032.60 × 196,846.90
  4. Step 4: Simplify right side
    206,688.40x = 61,028,956,208.94
  5. Step 5: Solve for x
    x = 61,028,956,208.94/206,688.40
  6. Step 6: Final answer
    x = 295,270.35

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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.