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Finding the Fourth Proportional to 438,633.65, 656,453.45 and 367,636.49

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Solution

The fourth proportional to 438,633.65, 656,453.45 and 367,636.49 is: 550,200.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,633.65 : 656,453.45 = 367,636.49 : x
  2. Step 2: Convert to fraction form
    438,633.65/656,453.45 = 367,636.49/x
  3. Step 3: Cross multiply
    438,633.65x = 656,453.45 × 367,636.49
  4. Step 4: Simplify right side
    438,633.65x = 241,336,243,929.51
  5. Step 5: Solve for x
    x = 241,336,243,929.51/438,633.65
  6. Step 6: Final answer
    x = 550,200.02

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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.