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Finding the Fourth Proportional to 584,260.50, 806,279.49 and 315,988.50

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Solution

The fourth proportional to 584,260.50, 806,279.49 and 315,988.50 is: 436,064.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,260.50 : 806,279.49 = 315,988.50 : x
  2. Step 2: Convert to fraction form
    584,260.50/806,279.49 = 315,988.50/x
  3. Step 3: Cross multiply
    584,260.50x = 806,279.49 × 315,988.50
  4. Step 4: Simplify right side
    584,260.50x = 254,775,046,625.87
  5. Step 5: Solve for x
    x = 254,775,046,625.87/584,260.50
  6. Step 6: Final answer
    x = 436,064.13

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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.