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Finding the Fourth Proportional to 483,645.68, 667,223.88 and 302,042.36

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Solution

The fourth proportional to 483,645.68, 667,223.88 and 302,042.36 is: 416,689.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,645.68 : 667,223.88 = 302,042.36 : x
  2. Step 2: Convert to fraction form
    483,645.68/667,223.88 = 302,042.36/x
  3. Step 3: Cross multiply
    483,645.68x = 667,223.88 × 302,042.36
  4. Step 4: Simplify right side
    483,645.68x = 201,529,875,363.56
  5. Step 5: Solve for x
    x = 201,529,875,363.56/483,645.68
  6. Step 6: Final answer
    x = 416,689.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.