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Finding the Fourth Proportional to 484,338.31, 668,418.81 and 269,478.82

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Solution

The fourth proportional to 484,338.31, 668,418.81 and 269,478.82 is: 371,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,338.31 : 668,418.81 = 269,478.82 : x
  2. Step 2: Convert to fraction form
    484,338.31/668,418.81 = 269,478.82/x
  3. Step 3: Cross multiply
    484,338.31x = 668,418.81 × 269,478.82
  4. Step 4: Simplify right side
    484,338.31x = 180,124,712,184.60
  5. Step 5: Solve for x
    x = 180,124,712,184.60/484,338.31
  6. Step 6: Final answer
    x = 371,898.54

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1.5x scale

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.