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Finding the Fourth Proportional to 349,689.89, 522,544.13 and 262,567.80

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Solution

The fourth proportional to 349,689.89, 522,544.13 and 262,567.80 is: 392,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,689.89 : 522,544.13 = 262,567.80 : x
  2. Step 2: Convert to fraction form
    349,689.89/522,544.13 = 262,567.80/x
  3. Step 3: Cross multiply
    349,689.89x = 522,544.13 × 262,567.80
  4. Step 4: Simplify right side
    349,689.89x = 137,203,261,304.18
  5. Step 5: Solve for x
    x = 137,203,261,304.18/349,689.89
  6. Step 6: Final answer
    x = 392,356.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.