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Finding the Fourth Proportional to 492,041.25, 679,013.98 and 277,250.51

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Solution

The fourth proportional to 492,041.25, 679,013.98 and 277,250.51 is: 382,604.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,041.25 : 679,013.98 = 277,250.51 : x
  2. Step 2: Convert to fraction form
    492,041.25/679,013.98 = 277,250.51/x
  3. Step 3: Cross multiply
    492,041.25x = 679,013.98 × 277,250.51
  4. Step 4: Simplify right side
    492,041.25x = 188,256,973,256.54
  5. Step 5: Solve for x
    x = 188,256,973,256.54/492,041.25
  6. Step 6: Final answer
    x = 382,604.05

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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.