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Finding the Fourth Proportional to 865,668.73, 1,194,545.15 and 483,642.49

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Solution

The fourth proportional to 865,668.73, 1,194,545.15 and 483,642.49 is: 667,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,668.73 : 1,194,545.15 = 483,642.49 : x
  2. Step 2: Convert to fraction form
    865,668.73/1,194,545.15 = 483,642.49/x
  3. Step 3: Cross multiply
    865,668.73x = 1,194,545.15 × 483,642.49
  4. Step 4: Simplify right side
    865,668.73x = 577,732,788,345.21
  5. Step 5: Solve for x
    x = 577,732,788,345.21/865,668.73
  6. Step 6: Final answer
    x = 667,383.22

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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.