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Finding the Fourth Proportional to 336,590.40, 504,205.20 and 209,841.60

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Solution

The fourth proportional to 336,590.40, 504,205.20 and 209,841.60 is: 314,338.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,590.40 : 504,205.20 = 209,841.60 : x
  2. Step 2: Convert to fraction form
    336,590.40/504,205.20 = 209,841.60/x
  3. Step 3: Cross multiply
    336,590.40x = 504,205.20 × 209,841.60
  4. Step 4: Simplify right side
    336,590.40x = 105,803,225,896.32
  5. Step 5: Solve for x
    x = 105,803,225,896.32/336,590.40
  6. Step 6: Final answer
    x = 314,338.22

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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.