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Finding the Fourth Proportional to 462,187.60, 693,281.40 and 309,972.40

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Solution

The fourth proportional to 462,187.60, 693,281.40 and 309,972.40 is: 464,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,187.60 : 693,281.40 = 309,972.40 : x
  2. Step 2: Convert to fraction form
    462,187.60/693,281.40 = 309,972.40/x
  3. Step 3: Cross multiply
    462,187.60x = 693,281.40 × 309,972.40
  4. Step 4: Simplify right side
    462,187.60x = 214,898,099,433.36
  5. Step 5: Solve for x
    x = 214,898,099,433.36/462,187.60
  6. Step 6: Final answer
    x = 464,958.60

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Similar ratio
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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.