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Finding the Fourth Proportional to 206,823.60, 310,235.40 and 185,828.40

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Solution

The fourth proportional to 206,823.60, 310,235.40 and 185,828.40 is: 278,742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,823.60 : 310,235.40 = 185,828.40 : x
  2. Step 2: Convert to fraction form
    206,823.60/310,235.40 = 185,828.40/x
  3. Step 3: Cross multiply
    206,823.60x = 310,235.40 × 185,828.40
  4. Step 4: Simplify right side
    206,823.60x = 57,650,548,005.36
  5. Step 5: Solve for x
    x = 57,650,548,005.36/206,823.60
  6. Step 6: Final answer
    x = 278,742.60

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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.