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Finding the Fourth Proportional to 436,389.80, 654,066.30 and 183,669.80

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Solution

The fourth proportional to 436,389.80, 654,066.30 and 183,669.80 is: 275,286.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,389.80 : 654,066.30 = 183,669.80 : x
  2. Step 2: Convert to fraction form
    436,389.80/654,066.30 = 183,669.80/x
  3. Step 3: Cross multiply
    436,389.80x = 654,066.30 × 183,669.80
  4. Step 4: Simplify right side
    436,389.80x = 120,132,226,507.74
  5. Step 5: Solve for x
    x = 120,132,226,507.74/436,389.80
  6. Step 6: Final answer
    x = 275,286.51

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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.