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Finding the Fourth Proportional to 472,908.34, 652,613.46 and 303,142.45

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Solution

The fourth proportional to 472,908.34, 652,613.46 and 303,142.45 is: 418,336.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,908.34 : 652,613.46 = 303,142.45 : x
  2. Step 2: Convert to fraction form
    472,908.34/652,613.46 = 303,142.45/x
  3. Step 3: Cross multiply
    472,908.34x = 652,613.46 × 303,142.45
  4. Step 4: Simplify right side
    472,908.34x = 197,834,843,167.38
  5. Step 5: Solve for x
    x = 197,834,843,167.38/472,908.34
  6. Step 6: Final answer
    x = 418,336.55

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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.