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Finding the Fourth Proportional to 865,837.91, 1,194,752.79 and 478,601

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Solution

The fourth proportional to 865,837.91, 1,194,752.79 and 478,601 is: 660,412.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,837.91 : 1,194,752.79 = 478,601 : x
  2. Step 2: Convert to fraction form
    865,837.91/1,194,752.79 = 478,601/x
  3. Step 3: Cross multiply
    865,837.91x = 1,194,752.79 × 478,601
  4. Step 4: Simplify right side
    865,837.91x = 571,809,880,046.79
  5. Step 5: Solve for x
    x = 571,809,880,046.79/865,837.91
  6. Step 6: Final answer
    x = 660,412.16

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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.