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Finding the Fourth Proportional to 577,496.40, 865,985.40 and 222,392.40

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Solution

The fourth proportional to 577,496.40, 865,985.40 and 222,392.40 is: 333,488.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,496.40 : 865,985.40 = 222,392.40 : x
  2. Step 2: Convert to fraction form
    577,496.40/865,985.40 = 222,392.40/x
  3. Step 3: Cross multiply
    577,496.40x = 865,985.40 × 222,392.40
  4. Step 4: Simplify right side
    577,496.40x = 192,588,571,470.96
  5. Step 5: Solve for x
    x = 192,588,571,470.96/577,496.40
  6. Step 6: Final answer
    x = 333,488.78

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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.