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Finding the Fourth Proportional to 504,921.15, 756,805.82 and 315,468.63

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Solution

The fourth proportional to 504,921.15, 756,805.82 and 315,468.63 is: 472,843.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,921.15 : 756,805.82 = 315,468.63 : x
  2. Step 2: Convert to fraction form
    504,921.15/756,805.82 = 315,468.63/x
  3. Step 3: Cross multiply
    504,921.15x = 756,805.82 × 315,468.63
  4. Step 4: Simplify right side
    504,921.15x = 238,748,493,634.08
  5. Step 5: Solve for x
    x = 238,748,493,634.08/504,921.15
  6. Step 6: Final answer
    x = 472,843.12

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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.