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Finding the Fourth Proportional to 336,587.40, 504,200.70 and 209,838.60

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Solution

The fourth proportional to 336,587.40, 504,200.70 and 209,838.60 is: 314,333.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,587.40 : 504,200.70 = 209,838.60 : x
  2. Step 2: Convert to fraction form
    336,587.40/504,200.70 = 209,838.60/x
  3. Step 3: Cross multiply
    336,587.40x = 504,200.70 × 209,838.60
  4. Step 4: Simplify right side
    336,587.40x = 105,800,769,007.02
  5. Step 5: Solve for x
    x = 105,800,769,007.02/336,587.40
  6. Step 6: Final answer
    x = 314,333.72

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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.