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Finding the Fourth Proportional to 220,835.60, 331,253.40 and 195,466.40

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Solution

The fourth proportional to 220,835.60, 331,253.40 and 195,466.40 is: 293,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,835.60 : 331,253.40 = 195,466.40 : x
  2. Step 2: Convert to fraction form
    220,835.60/331,253.40 = 195,466.40/x
  3. Step 3: Cross multiply
    220,835.60x = 331,253.40 × 195,466.40
  4. Step 4: Simplify right side
    220,835.60x = 64,748,909,585.76
  5. Step 5: Solve for x
    x = 64,748,909,585.76/220,835.60
  6. Step 6: Final answer
    x = 293,199.60

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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.