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Finding the Fourth Proportional to 206,882.10, 310,323.15 and 197,259.30

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Solution

The fourth proportional to 206,882.10, 310,323.15 and 197,259.30 is: 295,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,882.10 : 310,323.15 = 197,259.30 : x
  2. Step 2: Convert to fraction form
    206,882.10/310,323.15 = 197,259.30/x
  3. Step 3: Cross multiply
    206,882.10x = 310,323.15 × 197,259.30
  4. Step 4: Simplify right side
    206,882.10x = 61,214,127,342.80
  5. Step 5: Solve for x
    x = 61,214,127,342.80/206,882.10
  6. Step 6: Final answer
    x = 295,888.95

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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.