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Finding the Fourth Proportional to 554,868.51, 765,636.45 and 336,963.87

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Solution

The fourth proportional to 554,868.51, 765,636.45 and 336,963.87 is: 464,960.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,868.51 : 765,636.45 = 336,963.87 : x
  2. Step 2: Convert to fraction form
    554,868.51/765,636.45 = 336,963.87/x
  3. Step 3: Cross multiply
    554,868.51x = 765,636.45 × 336,963.87
  4. Step 4: Simplify right side
    554,868.51x = 257,991,821,205.06
  5. Step 5: Solve for x
    x = 257,991,821,205.06/554,868.51
  6. Step 6: Final answer
    x = 464,960.29

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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.